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\n  \n 2013\n \n \n (4)\n \n \n
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\n \n\n \n \n \n \n \n \n A method to resolve non-unique flows in deterministic macroscopic intersection models.\n \n \n \n \n\n\n \n Flötteröd, G.; and Flötteröd, Y.\n\n\n \n\n\n\n In Transportation Research Board 92nd Annaul Meeting, 2013. \n \n\n\n\n
\n\n\n\n \n \n \"APaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr65966,\n  author = {Gunnar Fl{\\"o}tter{\\"o}d and Yun-Pang Fl{\\"o}tter{\\"o}d},\n  title = {A method to resolve non-unique flows in deterministic macroscopic\n\tintersection models},\n  booktitle = {Transportation Research Board 92nd Annaul Meeting},\n  year = {2013},\n  abstract = {The modeling of complex urban road intersections with deterministic\n\tmacroscopic models of traffic flow is known to suffer from non-unique\n\tsolutions. This article proposes a new method to deal with this problem.},\n  keywords = {deterministic macroscopic traffic model, traffic simulation},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/65966/}\n}\n\n
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\n The modeling of complex urban road intersections with deterministic macroscopic models of traffic flow is known to suffer from non-unique solutions. This article proposes a new method to deal with this problem.\n
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\n \n\n \n \n \n \n \n Extended Simulation Tool PHEM coupled to SUMO with User Guide (Draft).\n \n \n \n\n\n \n Furian, N.; Hausberger, S.; and Krajzewicz, D.\n\n\n \n\n\n\n Technical Report COLOMBO consortium, October 2013.\n \n\n\n\n
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@TECHREPORT{Furian2013,\n  author = {Furian, Nikolaus and Hausberger, Stefan and Krajzewicz, Daniel},\n  title = {Extended Simulation Tool PHEM coupled to SUMO with User Guide (Draft)},\n  institution = {COLOMBO consortium},\n  year = {2013},\n  type = {Deliverable to the European Commission},\n  month = {October},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08}\n}\n\n
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\n \n\n \n \n \n \n \n \n Simulative Untersuchung abstrakter und realer Verkehrsmanagementansätze zur Emissionsreduktion.\n \n \n \n \n\n\n \n Krajzewicz, D.; and Flötteröd, Y.\n\n\n \n\n\n\n In Kolloquium \"Luftqualität an Straßen 2013\", pages 42–57, März 2013. Bundesanstalt für Straßenwesen\n \n\n\n\n
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@INPROCEEDINGS{dlr81834,\n  author = {Daniel Krajzewicz and Yun-Pang Fl{\\"o}tter{\\"o}d},\n  title = {Simulative Untersuchung abstrakter und realer Verkehrsmanagementans{\\"a}tze\n\tzur Emissionsreduktion},\n  booktitle = {Kolloquium "Luftqualit{\\"a}t an Stra{\\ss}en 2013"},\n  year = {2013},\n  pages = {42--57},\n  month = {M{\\"a}rz},\n  publisher = {Bundesanstalt f{\\"u}r Stra{\\ss}enwesen},\n  abstract = {Verkehrsflusssimulationen sind ein etabliertes Werkzeug des Verkehrsmanagements,\n\tdie auch zur Bewertung von schadstoffreduzierenden Verkehrsmanagementma{\\ss}nahmen\n\therangezogen werden k{\\"o}nnen. Vorgestellt werden abgeschlossene\n\tund laufende Arbeiten zur simulationsgest{\\"u}tzten Entwicklung und\n\tBewertung solcher Ma{\\ss}nahmen.},\n  journal = {Kolloquium Luftqualit{\\"a}t an Stra{\\ss}en 2013},\n  keywords = {Simulation, Schadstoffemission, Verkehrsmanagementma{\\ss}nahmen},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/81834/}\n}\n\n
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\n Verkehrsflusssimulationen sind ein etabliertes Werkzeug des Verkehrsmanagements, die auch zur Bewertung von schadstoffreduzierenden Verkehrsmanagementmaßnahmen herangezogen werden können. Vorgestellt werden abgeschlossene und laufende Arbeiten zur simulationsgestützten Entwicklung und Bewertung solcher Maßnahmen.\n
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\n \n\n \n \n \n \n \n Analysis and simulation of traffic management actions for traffic emission reduction.\n \n \n \n\n\n \n Verg�s, J. T.\n\n\n \n\n\n\n Master Thesis, TU Berlin, July 2013.\n \n\n\n\n
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@MASTERSTHESIS{Verges2013,\n  author = {Verg�s, Josep Tom�s},\n  title = {Analysis and simulation of traffic management actions for traffic\n\temission reduction},\n  school = {TU Berlin},\n  year = {2013},\n  type = {Master Thesis},\n  month = {July},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08}\n}\n\n
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\n  \n 2012\n \n \n (6)\n \n \n
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\n \n\n \n \n \n \n \n \n Ecological User Equilibrium in Traffic Management (TM)?.\n \n \n \n \n\n\n \n Behrisch, M.; Flötteröd, Y.; Krajzewicz, D.; and Wagner, P.\n\n\n \n\n\n\n Februar 2012.\n Der Eintrag wurde auf der DTA 2012 vorgestellt.\n\n\n\n
\n\n\n\n \n \n \"EcologicalPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@UNPUBLISHED{dlr76186,\n  author = {Michael Behrisch and Yun-Pang Fl\\"otter\\"od and Daniel Krajzewicz\n\tand Peter Wagner},\n  title = {Ecological User Equilibrium in Traffic Management (TM)?},\n  note = {Der Eintrag wurde auf der DTA 2012 vorgestellt.},\n  month = {Februar},\n  year = {2012},\n  abstract = {With increasing environmental sustainability awareness significant\n\tattention on ecological traffic management (eco-TM) has come into\n\tthe focus of researchers and practitioners. While different approaches\n\thave been applied to reach minimal pollutant production, the classic\n\tuser equilibrium calculation with the pollutant production as travel\n\tcosts instead of using travel times remains in the center of attention.\n\tHowever, the validity of such a direct transformation to find a user\n\tequilibrium is questionable. In this paper, a simplified analytical\n\tapproach to examine the above aforementioned validity has been carried\n\tout, followed by a simulation approach to verify the results of the\n\tanalytical approach. The result shows that the pollutant production\n\tfunction violates the usual assumption of a monotonous function (typically,\n\temission has a minimum at travel speeds around 60 km/h). It also\n\tindicates that the respective algorithms to compute the user equilibrium\n\tmust deal with the fact, that the equilibrium solution is not unique\n\tand is dependent on the initial solution. This means that substantial\n\tmodifications to the algorithms that compute the user equilibrium\n\thave to be discussed since they do not work as intended when pollutant\n\tproduction is used as travel costs, especially in a transportation\n\tsystem with mixed speeds that cover a range around the minimum emission\n\tspeed.},\n  institution = {Institut f\\"ur Verkehrssystemtechnik},\n  keywords = {ecological traffic management, traffic simulation, user equilibrium},\n  owner = {dkrajzew},\n  timestamp = {2012.09.18},\n  url = {http://elib.dlr.de/76186/}\n}\n\n
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\n With increasing environmental sustainability awareness significant attention on ecological traffic management (eco-TM) has come into the focus of researchers and practitioners. While different approaches have been applied to reach minimal pollutant production, the classic user equilibrium calculation with the pollutant production as travel costs instead of using travel times remains in the center of attention. However, the validity of such a direct transformation to find a user equilibrium is questionable. In this paper, a simplified analytical approach to examine the above aforementioned validity has been carried out, followed by a simulation approach to verify the results of the analytical approach. The result shows that the pollutant production function violates the usual assumption of a monotonous function (typically, emission has a minimum at travel speeds around 60 km/h). It also indicates that the respective algorithms to compute the user equilibrium must deal with the fact, that the equilibrium solution is not unique and is dependent on the initial solution. This means that substantial modifications to the algorithms that compute the user equilibrium have to be discussed since they do not work as intended when pollutant production is used as travel costs, especially in a transportation system with mixed speeds that cover a range around the minimum emission speed.\n
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\n \n\n \n \n \n \n \n \n Demand-oriented traffic management for incidents and disasters.\n \n \n \n \n\n\n \n Flötteröd, Y.; and Bieker, L.\n\n\n \n\n\n\n In ICEM 2012, 2012. \n \n\n\n\n
\n\n\n\n \n \n \"Demand-orientedPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr71871,\n  author = {Yun-Pang Fl{\\"o}tter{\\"o}d and Laura Bieker},\n  title = {Demand-oriented traffic management for incidents and disasters},\n  booktitle = {ICEM 2012},\n  year = {2012},\n  abstract = {Traffic simulation has been extensively used as a decision support\n\ttool for efficient traffic management in daily life. During disasters\n\tand incidents, traffic simulation can further help rescue teams to\n\tunderstand the current traffic state and the possible impacts of\n\tproposed strategies and then to make proper decisions. At this point,\n\tthe changes in traffic demand should also be considered in the simulation\n\tto reflect the latest traffic state. In this paper, a demand-oriented\n\ttraffic management system for disasters and incidents with a web-based\n\tportal is introduced. In this system, not only the real-time data\n\tfrom loop and wireless detectors but also traffic simulation are\n\tused for reconstructing and predicting the traffic state. Furthermore,\n\tfour traffic demand categories for disasters and incidents are proposed\n\tin the system. Some respective demand characteristics are collected\n\taccording to historical cases, such as departure pattern and people?s\n\tperception about evacuation. Such characteristics will be used in\n\tthe system, since they have a great influence on the simulated traffic\n\tstate and the effectiveness of applied strategies. Finally, the approach\n\thow to generate the respective special demands for disasters and\n\tincidents with consideration of the normal traffic demand is proposed\n\tas well. },\n  keywords = {traffic management; disaster; SUMO;VABENE; traffic simulation},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/71871/}\n}\n\n
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\n Traffic simulation has been extensively used as a decision support tool for efficient traffic management in daily life. During disasters and incidents, traffic simulation can further help rescue teams to understand the current traffic state and the possible impacts of proposed strategies and then to make proper decisions. At this point, the changes in traffic demand should also be considered in the simulation to reflect the latest traffic state. In this paper, a demand-oriented traffic management system for disasters and incidents with a web-based portal is introduced. In this system, not only the real-time data from loop and wireless detectors but also traffic simulation are used for reconstructing and predicting the traffic state. Furthermore, four traffic demand categories for disasters and incidents are proposed in the system. Some respective demand characteristics are collected according to historical cases, such as departure pattern and people?s perception about evacuation. Such characteristics will be used in the system, since they have a great influence on the simulated traffic state and the effectiveness of applied strategies. Finally, the approach how to generate the respective special demands for disasters and incidents with consideration of the normal traffic demand is proposed as well. \n
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\n \n\n \n \n \n \n \n \n Simulated-based Validity Analysis of Ecological User Equilibrium.\n \n \n \n \n\n\n \n Flötteröd, Y.; Wagner, P.; Behrisch, M.; and Krajzewicz, D.\n\n\n \n\n\n\n In 2012 Winter Simulation Conference, Dezember 2012. \n \n\n\n\n
\n\n\n\n \n \n \"Simulated-basedPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr80610,\n  author = {Yun-Pang Fl{\\"o}tter{\\"o}d and Peter Wagner and Michael Behrisch\n\tand Daniel Krajzewicz},\n  title = {Simulated-based Validity Analysis of Ecological User Equilibrium},\n  booktitle = {2012 Winter Simulation Conference},\n  year = {2012},\n  month = {Dezember},\n  abstract = {Microscopic traffic simulation models are applied in the analysis\n\tof transportation systems for years. Nevertheless, calibration (and\n\tvalidation) of microscopic sub-models such as car-following and gap-acceptance\n\tmodels is still a recent matter. The objective of the calibration\n\tis to adapt the simulation output to empirical data by adjusting\n\tthe model's parameters. However, simulation results may vary from\n\tthe underlying real-world data, despite the calibration. To analyze\n\tthese deviations the present paper compares two different approaches\n\tof calibration using data from a single-lane car-following experiment\n\ton a Japanese test track. It is demonstrated that the results of\n\tthe two methods differ significantly. A recommendation for the more\n\tappropriate method to use is given.},\n  journal = {Winter Simulation Conference Archive},\n  keywords = {traffic simulation, user equilibrium, ecology},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/80610/}\n}\n\n
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\n Microscopic traffic simulation models are applied in the analysis of transportation systems for years. Nevertheless, calibration (and validation) of microscopic sub-models such as car-following and gap-acceptance models is still a recent matter. The objective of the calibration is to adapt the simulation output to empirical data by adjusting the model's parameters. However, simulation results may vary from the underlying real-world data, despite the calibration. To analyze these deviations the present paper compares two different approaches of calibration using data from a single-lane car-following experiment on a Japanese test track. It is demonstrated that the results of the two methods differ significantly. A recommendation for the more appropriate method to use is given.\n
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\n \n\n \n \n \n \n \n Towards Reproducibility and Comparability of IVC Simulation Studies - A Literature Survey.\n \n \n \n\n\n \n Joerer, S.; Sommer, C.; and Dressler, F.\n\n\n \n\n\n\n IEEE Communications Magazine. 2012.\n to appear\n\n\n\n
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@ARTICLE{joerer2012towards,\n  author = {Joerer, Stefan and Sommer, Christoph and Dressler, Falko},\n  title = {{Towards Reproducibility and Comparability of IVC Simulation Studies\n\t- A Literature Survey}},\n  journal = {IEEE Communications Magazine},\n  year = {2012},\n  note = {to appear},\n  publisher = {IEEE}\n}\n\n
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\n \n\n \n \n \n \n \n \n Simulation of V2X Applications with the iTETRIS System.\n \n \n \n \n\n\n \n Krajzewicz, D.; Bieker, L.; H�rri, J.; and Blokpoel, R.\n\n\n \n\n\n\n Procedia - Social and Behavioral Sciences, 48(0): 1482 - 1492. 2012.\n Transport Research Arena 2012\n\n\n\n
\n\n\n\n \n \n \"SimulationPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 10 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@ARTICLE{Krajzewicz20121482,\n  author = {Daniel Krajzewicz and Laura Bieker and J�r�me H�rri and Robbin Blokpoel},\n  title = {Simulation of V2X Applications with the iTETRIS System},\n  journal = {Procedia - Social and Behavioral Sciences},\n  year = {2012},\n  volume = {48},\n  pages = {1482 - 1492},\n  number = {0},\n  note = {<ce:title>Transport Research Arena 2012</ce:title>},\n  abstract = {The main task of the �iTETRIS� project which was co-funded by the\n\tEuropean Commission was the development of a software system for\n\tthe simulation of large-scale traffic management solutions based\n\ton vehicular communication (V2X). Several steps were taken to assure\n\tthat the developed simulation system fits the current research and\n\tengineering needs, including the evaluation of a city�s traffic problems,\n\tdefinition of performance metrics, development of V2X-enabled traffic\n\tmanagement applications, and the extension of the simulators used\n\twithin the developed simulation architecture. Within this report,\n\tthe major results of the project will be presented. Most of these\n\tresults were made freely available after the project�s end.},\n  doi = {10.1016/j.sbspro.2012.06.1124},\n  issn = {1877-0428},\n  keywords = {traffic management},\n  url = {http://www.sciencedirect.com/science/article/pii/S1877042812028601}\n}\n\n
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\n The main task of the �iTETRIS� project which was co-funded by the European Commission was the development of a software system for the simulation of large-scale traffic management solutions based on vehicular communication (V2X). Several steps were taken to assure that the developed simulation system fits the current research and engineering needs, including the evaluation of a city�s traffic problems, definition of performance metrics, development of V2X-enabled traffic management applications, and the extension of the simulators used within the developed simulation architecture. Within this report, the major results of the project will be presented. Most of these results were made freely available after the project�s end.\n
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\n \n\n \n \n \n \n \n \n Simplified car-following models.\n \n \n \n \n\n\n \n Wagner, P.; Flötteröd, G.; Nippold, R.; and Flötteröd, Y.\n\n\n \n\n\n\n In Transportation Research Board 91st Annaul Meeting, Januar 2012. \n \n\n\n\n
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@INPROCEEDINGS{dlr72224,\n  author = {Peter Wagner and Gunnar Fl{\\"o}tter{\\"o}d and Ronald Nippold and\n\tYun-Pang Fl{\\"o}tter{\\"o}d},\n  title = {Simplified car-following models},\n  booktitle = {Transportation Research Board 91st Annaul Meeting},\n  year = {2012},\n  month = {Januar},\n  abstract = {This work presents strong evidence that human car-following behaviour\n\tcan be described by a linear model with no more than three parameters\n\tto an amazing degree of precision. From this result it can be inferred\n\tthat any microscopic traffic flow model can be composed of the car-following\n\tbehaviour plus a couple of rules that fixes boundaries of the behaviour\n\tin terms of limitations to speed, acceleration, and safety. These\n\tlimitations, however, usually have a clear physical meaning and understanding\n\tand are the only non-linearities needed to built a microscopic traffic\n\tflow model.},\n  keywords = {car-following, simple traffic flow models, ARIMA, calibration of traffic\n\tflow models},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/72224/}\n}\n\n
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\n This work presents strong evidence that human car-following behaviour can be described by a linear model with no more than three parameters to an amazing degree of precision. From this result it can be inferred that any microscopic traffic flow model can be composed of the car-following behaviour plus a couple of rules that fixes boundaries of the behaviour in terms of limitations to speed, acceleration, and safety. These limitations, however, usually have a clear physical meaning and understanding and are the only non-linearities needed to built a microscopic traffic flow model.\n
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\n \n\n \n \n \n \n \n Development of an Interface between Signal Controller and Traffic Simulator.\n \n \n \n\n\n \n Bajpai, A.; and Mathew, T. V\n\n\n \n\n\n\n In 1st Conference of Transportation Research Group of India, 12 2011. Transportation Research Group of India\n \n\n\n\n
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@INPROCEEDINGS{Bajpai2011,\n  author = {Ashutosh Bajpai and Tom V Mathew},\n  title = {Development of an Interface between Signal Controller and Traffic\n\tSimulator},\n  booktitle = {1st Conference of Transportation Research Group of India},\n  year = {2011},\n  month = {12},\n  organization = {Transportation Research Group of India},\n  abstract = {Adaptive Traffic Control algorithm is an important strategy to manage\n\ttraffic at an intersection. These are an improvement of vehicle actuated\n\tsignal control, where explicitly strategies are formulated to compute\n\tthe signal timing considering the current traffic state obtained\n\tfrom sensors. However, field evaluation of these strategies is cumbersome\n\tand expensive and hence simulators which model traffic system can\n\tbe a good alternative. The main challenge in this is a good interface\n\tbetween the signal control system and the traffic simulators. The\n\tsignal control system needs the state of the junction in terms of\n\tvehicle occupancy at every instant. On the other hand, traffic simulator\n\tneeds information on whether the signal state has changed. This two\n\tway communication requires an efficient interface which is similar\n\tto client-server architecture. The simulator acts as the server where\n\tas the adaptive control strategy act like client. This paper proposes\n\tan efficient interface to couple adaptive control strategy and traffic\n\tsimulator. This interface mediates between traffic control system\n\tand traffic simulator and provides online interaction to simulation\n\tfrom the control strategy. This interface facilitates pure procedural\n\troutines to communicate and is written in C language along with Python/C\n\tAPI. Additionally, a module to estimate the vehicular delay due to\n\tthe control strategy is developed. This delay is estimated by defining\n\teffective length of queue, which is provided as a user input.\n\n\n\tThis interface is tested using SUMO (Simulation for Urban Mobility),\n\twhich is an open source, microscopic, space continuous and time discrete\n\tsimulator developed by German Aerospace Centre. The traffic control\n\tstrategy is analogous to the HCM vehicle actuated traffic control\n\texcept that there is a queue prediction model which computes upper\n\tlimits on the maximum green time. An isolated four arm junction having\n\tfour phases is simulated for various flow conditions. The simulator\n\tsupplied the state of the downstream detector to the traffic control\n\talgorithm at every simulation step and the control algorithm determines\n\tthe signal time strategies (phase termination, green extension, and\n\tmaximum green time). These strategies are communicated to the simulator.\n\tThese communications were facilitated by the proposed interface.\n\tThe average stopped delay is computed as the performance parameter.\n\tThe interface was also coupled with another traffic simulator (VISSIM)\n\tand the results are compared. This interface justifies the concept\n\tof reusability by the evaluation of number of control strategy.},\n  file = {:https\\://sumo.dlr.de/pdf/CTRG_Interface-SUMO.pdf:URL},\n  keywords = {Traffic simulator, Signal controller, Procedural Interface, SUMO (Simulation\n\tof Urban Mobility), VISSIM (Verkehr In St�dten - SIMulationsmodell)},\n  owner = {dkrajzew},\n  timestamp = {2012.02.07}\n}\n\n
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\n Adaptive Traffic Control algorithm is an important strategy to manage traffic at an intersection. These are an improvement of vehicle actuated signal control, where explicitly strategies are formulated to compute the signal timing considering the current traffic state obtained from sensors. However, field evaluation of these strategies is cumbersome and expensive and hence simulators which model traffic system can be a good alternative. The main challenge in this is a good interface between the signal control system and the traffic simulators. The signal control system needs the state of the junction in terms of vehicle occupancy at every instant. On the other hand, traffic simulator needs information on whether the signal state has changed. This two way communication requires an efficient interface which is similar to client-server architecture. The simulator acts as the server where as the adaptive control strategy act like client. This paper proposes an efficient interface to couple adaptive control strategy and traffic simulator. This interface mediates between traffic control system and traffic simulator and provides online interaction to simulation from the control strategy. This interface facilitates pure procedural routines to communicate and is written in C language along with Python/C API. Additionally, a module to estimate the vehicular delay due to the control strategy is developed. This delay is estimated by defining effective length of queue, which is provided as a user input. This interface is tested using SUMO (Simulation for Urban Mobility), which is an open source, microscopic, space continuous and time discrete simulator developed by German Aerospace Centre. The traffic control strategy is analogous to the HCM vehicle actuated traffic control except that there is a queue prediction model which computes upper limits on the maximum green time. An isolated four arm junction having four phases is simulated for various flow conditions. The simulator supplied the state of the downstream detector to the traffic control algorithm at every simulation step and the control algorithm determines the signal time strategies (phase termination, green extension, and maximum green time). These strategies are communicated to the simulator. These communications were facilitated by the proposed interface. The average stopped delay is computed as the performance parameter. The interface was also coupled with another traffic simulator (VISSIM) and the results are compared. This interface justifies the concept of reusability by the evaluation of number of control strategy.\n
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\n \n\n \n \n \n \n \n SHARING THE ROADS USING ROUTE INFORMATION SHARING.\n \n \n \n\n\n \n Barber, A.\n\n\n \n\n\n\n Master's thesis, University of Tulsa, 2011.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@MASTERSTHESIS{Barber2011,\n  author = {Anthony Barber},\n  title = {SHARING THE ROADS USING ROUTE INFORMATION SHARING},\n  school = {University of Tulsa},\n  year = {2011},\n  file = {:https\\://sumo.dlr.de/pdf/BarberThesis.pdf:URL},\n  keywords = {University of Tulsa, sumo},\n  owner = {dkrajzew},\n  timestamp = {2011.09.19}\n}\n\n
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\n \n\n \n \n \n \n \n \n SUMO - Simulation of Urban MObility: An Overview.\n \n \n \n \n\n\n \n Behrisch, M.; Bieker, L.; Erdmann, J.; and Krajzewicz, D.\n\n\n \n\n\n\n In of Oslo Aida Omerovic, S. & U.; Simoni, R. I. - R. T. P. D. A.; and Bobashev, R. I. - R. T. P. G., editor(s), SIMUL 2011, The Third International Conference on Advances in System Simulation, pages 63-68, Barcelona, Spain, October 2011. ThinkMind\n \n\n\n\n
\n\n\n\n \n \n \"SUMOPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 11 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Behrisch2011,\n  author = {Michael Behrisch and Laura Bieker and Jakob Erdmann and Daniel Krajzewicz},\n  title = {SUMO - Simulation of Urban MObility: An Overview},\n  booktitle = {SIMUL 2011, The Third International Conference on Advances in System\n\tSimulation},\n  year = {2011},\n  editor = {SINTEF \\& University of Oslo Aida Omerovic and RTI International\n\t- Research Triangle Park Diglio A. Simoni and RTI International -\n\tResearch Triangle Park Georgiy Bobashev},\n  pages = {63-68},\n  address = {Barcelona, Spain},\n  month = {October},\n  publisher = {ThinkMind},\n  abstract = {SUMO is an open source traffic simulation package including net import\n\tand demand modeling components. We describe the current state of\n\tthe package as well as future developments and extensions. SUMO helps\n\tto investigate several research topics e.g. route choice and traffic\n\tlight algorithm or simulating vehicular communication. Therefore\n\tthe framework is used in different projects to simulate automatic\n\tdriving or traffic management strategies.},\n  journal = {Proceedings of SIMUL 2011, The Third International Conference on\n\tAdvances in System Simulation},\n  keywords = {microscopic traffic simulation, software, open source},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/71460/}\n}\n\n
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\n SUMO is an open source traffic simulation package including net import and demand modeling components. We describe the current state of the package as well as future developments and extensions. SUMO helps to investigate several research topics e.g. route choice and traffic light algorithm or simulating vehicular communication. Therefore the framework is used in different projects to simulate automatic driving or traffic management strategies.\n
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\n \n\n \n \n \n \n \n \n Ecological User Equilibrium?.\n \n \n \n \n\n\n \n Behrisch, M.; Flötteröd, Y.; Krajzewicz, D.; and Wagner, P.\n\n\n \n\n\n\n In DTA 2012, November 2011. \n \n\n\n\n
\n\n\n\n \n \n \"EcologicalPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr71870,\n  author = {Michael Behrisch and Yun-Pang Fl\\"otter\\"od and Daniel Krajzewicz\n\tand Peter Wagner},\n  title = {Ecological User Equilibrium?},\n  booktitle = {DTA 2012},\n  year = {2011},\n  month = {November},\n  abstract = {With increasing environmental sustainability awareness significant\n\tattention on ecological traffic management (eco-TM) has come into\n\tthe focus of researchers and practitioners. While different approaches\n\thave been applied to reach minimal pollutant production, the classic\n\tuser equilibrium calculation with the pollutant production as travel\n\tcosts instead of using travel times remains in the center of attention.\n\tHowever, the validity of such a direct transformation to find a user\n\tequilibrium is questionable. In this paper, a simplified analytical\n\tapproach to examine the above aforementioned validity has been carried\n\tout, followed by a simulation approach to verify the results of the\n\tanalytical approach. The initial result shows that the pollutant\n\tproduction function violates the usual assumption of a monotonous\n\tfunction (typically, emission has a minimum at travel speeds around\n\t\\unit[60]{km/h} ). This means that substantial modifications to the\n\talgorithms that compute the user equilibrium have to be discussed\n\tsince they do not work as intended when pollutant production is used\n\tas travel costs, especially in a transportation system with mixed\n\tspeeds that cover a range around the minimum emission speed.},\n  keywords = {eco traffic management, dynamic traffic assignment, user equilibrium},\n  owner = {dkrajzew},\n  timestamp = {2012.09.18},\n  url = {http://elib.dlr.de/71870/}\n}\n\n
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\n With increasing environmental sustainability awareness significant attention on ecological traffic management (eco-TM) has come into the focus of researchers and practitioners. While different approaches have been applied to reach minimal pollutant production, the classic user equilibrium calculation with the pollutant production as travel costs instead of using travel times remains in the center of attention. However, the validity of such a direct transformation to find a user equilibrium is questionable. In this paper, a simplified analytical approach to examine the above aforementioned validity has been carried out, followed by a simulation approach to verify the results of the analytical approach. The initial result shows that the pollutant production function violates the usual assumption of a monotonous function (typically, emission has a minimum at travel speeds around ˘nit[60]km/h ). This means that substantial modifications to the algorithms that compute the user equilibrium have to be discussed since they do not work as intended when pollutant production is used as travel costs, especially in a transportation system with mixed speeds that cover a range around the minimum emission speed.\n
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\n \n\n \n \n \n \n \n \n Emergency Vehicle Prioritization using Vehicle-To-Vehicle Communication.\n \n \n \n \n\n\n \n Bieker, L.\n\n\n \n\n\n\n In Young Researchers Seminar, Juni 2011. \n \n\n\n\n
\n\n\n\n \n \n \"EmergencyPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Bieker2011a,\n  author = {Laura Bieker},\n  title = {Emergency Vehicle Prioritization using Vehicle-To-Vehicle Communication},\n  booktitle = {Young Researchers Seminar},\n  year = {2011},\n  month = {Juni},\n  abstract = {Emergency vehicles need to reach their destination as fast as possible.\n\tThey deserve the highest priority at intersections. Therefore, they\n\tare allowed to use bus lanes and pass red lights at traffic light\n\tsystems. Nevertheless, for emergency vehicles it is still quicker\n\tand safer to get priority at the approaching intersection. This paper\n\tanalyses how the travel time of emergency vehicles can be improved\n\tby using vehicle-to-infrastructure (V2I) communication. Emergency\n\tvehicles are sending messages with their route information and their\n\tcurrent position. The traffic lights which have to be passed can\n\tswitch to green for emergency vehicles and to red for all other streets.\n\tThe traffic lights continue the normal operation after the emergency\n\tvehicle has passed the intersection. Simulation results show that\n\temergency vehicles can reach their destination faster.},\n  keywords = {V2I communication, Emergency vehicle, traffic management, traffic\n\tsimulation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/70219/}\n}\n\n
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\n Emergency vehicles need to reach their destination as fast as possible. They deserve the highest priority at intersections. Therefore, they are allowed to use bus lanes and pass red lights at traffic light systems. Nevertheless, for emergency vehicles it is still quicker and safer to get priority at the approaching intersection. This paper analyses how the travel time of emergency vehicles can be improved by using vehicle-to-infrastructure (V2I) communication. Emergency vehicles are sending messages with their route information and their current position. The traffic lights which have to be passed can switch to green for emergency vehicles and to red for all other streets. The traffic lights continue the normal operation after the emergency vehicle has passed the intersection. Simulation results show that emergency vehicles can reach their destination faster.\n
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\n \n\n \n \n \n \n \n \n Evaluation of opening Bus Lanes for private Traffic triggered via V2X Communication.\n \n \n \n \n\n\n \n Bieker, L.; and Krajzewicz, D.\n\n\n \n\n\n\n In First Forum on Integrated and Sustainable Transportation Systems (FISTS), Juni 2011. \n \n\n\n\n
\n\n\n\n \n \n \"EvaluationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Bieker2011,\n  author = {Laura Bieker and Daniel Krajzewicz},\n  title = {Evaluation of opening Bus Lanes for private Traffic triggered via\n\tV2X Communication},\n  booktitle = {First Forum on Integrated and Sustainable Transportation Systems\n\t(FISTS)},\n  year = {2011},\n  month = {Juni},\n  abstract = {Within the EC project ?iTETRIS?, an architecture for simulating traffic\n\tmanagement applications based on vehicular communications (V2X) was\n\tdesigned and implemented. The work was based on evaluating the needs\n\tof a real city ? the city of Bologna. Applications which try to solve\n\tthe detected problems were defined and evaluated in subsequent steps.\n\tThis report describes the evaluation of one of the developed applications,\n\tnamely ?Bus Lane Management?. It was analyzed whether it is possible\n\tto detect the traffic demand via V2X communication and open bus lanes\n\tfor private vehicles. It turned out that this could be done efficiently:\n\tdedicating the free space on the bus lanes improves the average travel\n\ttimes and route lengths of all vehicles. However, this is true only\n\tif the penetration rates stay well below 50%. If more vehicles try\n\tto benefit, the situation deteriorates readily.},\n  keywords = {traffc simulation, bus lane management, V2V communication},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/70220/}\n}\n\n
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\n Within the EC project ?iTETRIS?, an architecture for simulating traffic management applications based on vehicular communications (V2X) was designed and implemented. The work was based on evaluating the needs of a real city ? the city of Bologna. Applications which try to solve the detected problems were defined and evaluated in subsequent steps. This report describes the evaluation of one of the developed applications, namely ?Bus Lane Management?. It was analyzed whether it is possible to detect the traffic demand via V2X communication and open bus lanes for private vehicles. It turned out that this could be done efficiently: dedicating the free space on the bus lanes improves the average travel times and route lengths of all vehicles. However, this is true only if the penetration rates stay well below 50%. If more vehicles try to benefit, the situation deteriorates readily.\n
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\n \n\n \n \n \n \n \n \n Simulative Untersuchung und Bewertung Vehicle-to-Infrastructure basierter Anfahrstrategien an Lichtsignalanlagen.\n \n \n \n \n\n\n \n D�ring, M.\n\n\n \n\n\n\n 07 2011.\n \n\n\n\n
\n\n\n\n \n \n \"SimulativePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@MISC{Duering2011,\n  author = {Michael D�ring},\n  title = {Simulative Untersuchung und Bewertung Vehicle-to-Infrastructure basierter\n\tAnfahrstrategien an Lichtsignalanlagen},\n  month = {07},\n  year = {2011},\n  abstract = {Das Institut f�r Verkehrssystemtechnik im Deutschen Zentrum f�r Luft-\n\tund Raumfahrt e.V.\n\n\t(DLR) besch�ftigt sich, unter anderem, mit der Entwicklung und Evaluation\n\tvon Fahrerassistenzsystemen.\n\n\tIn diesem Zusammenhang ist das DLR Mitglied im Car-2-Car Communication\n\n\tConsortium, welches eine f�hrende Rolle bei der Erarbeitung von Standards\n\t(IEEE\n\n\t802.11p) f�r die drahtlose �bertragung von Informationen zwischen\n\tFahrzeugen sowie\n\n\tFahrzeugen und kooperativer Verkehrsinfrastruktur definiert. Erste\n\tDemonstrationen zeigen\n\n\tden sinnvollen Einsatz dieser Technologie f�r k�nftige Fahrerassistenzsysteme.\n\tDas\n\n\tZiel dieser Systeme ist es die Sicherheit und die Effizienz im Stra�enverkehr\n\tweiter zu\n\n\terh�hen.\n\n\n\tIm Entwicklungsprozess von Assistenz- und Automationssystemen werden\n\tverschiedene\n\n\tSchritte, beginnend bei Simulationsstudien zur Absch�tzung der Auswirkungen\n\teines neuartigen\n\n\tSystems im Verkehr bis hin zur Evaluation von Prototypen in Feldversuchen,\n\n\tdurchlaufen. In der vorliegenden Arbeit wird das Anfahrverhalten von\n\t50 Fahrzeugen simuliert,\n\n\tdie sich in einem R�ckstau vor einer Lichtsignalanlage (LSA) befinden.\n\tDer Aufbau\n\n\tder Simulation besteht aus einer LSA gesteuerten Kreuzung, deren einzige\n\tFahrtrichtung\n\n\tjeweils die Geradeausfahrt ist. Als Simulationsumgebung wird SUMO\n\tverwendet.\n\n\n\tDas Ziel der Arbeit ist die Untersuchung und Auswertung von drei unterschiedlichen\n\tAnfahrszenarien.\n\n\tZum einen wird das derzeitige Anfahrverhalten abgebildet. Zum anderen\n\n\twerden zwei Fahrerassistenzsysteme betrachtet. Ein Assistenzsystem\n\tunterst�tzt den\n\n\tFahrer, indem ihm die Restzeit der Rotphase angezeigt wird bzw. indem\n\tder Assistent den\n\n\tFahrer beim Beschleunigungsvorgang unterst�tzt. Der andere Assistent\n\t�bernimmt vollautomatisch\n\n\tdie L�ngsf�hrung der Fahrzeuge. F�r die beiden Assistenten wird die\n\tVehicleto-\n\n\tX Technologie mit einer Durchdringungsrate von 100% vorausgesetzt.\n\n\n\tEs wird gezeigt, dass durch die Variation der Anfahrstrategie sowohl\n\teine Verringerung\n\n\tder Aufenthaltsdauer des letzten Fahrzeugs in der Simulation (im Folgenden\n\tSimulationszeit)\n\n\tvon 25% bis 85% als auch die Reduzierung der Anzahl der Gr�nphasen\n\tder LSA zum\n\n\tR�umen der Kreuzung von 14 auf 4 m�glich ist. Die Einsparungsm�glichkeiten\n\thinsichtlich\n\n\tdes Kraftstoffverbrauchs liegen zwischen 21% und 94%. Weiterhin wurden\n\tmit der Gr�nphasendauer\n\n\tund dem Beschleunigungswert zwei Parameter identifiziert, die bedeutenden\n\n\tEinfluss auf den Ablauf der Simulation und das Potential zur Reduzierung\n\tder Simulationszeit\n\n\tund des Kraftstoffverbrauchs bzw. der Emission haben.},\n  file = {pdf:http\\://elib.dlr.de/70524/1/Studienarbeit_Michael_D%C3%BCring_110726.pdf:URL},\n  keywords = {Lichtsignalanlagen, Anfahren, V2X, TLS, DLR/TS/VM},\n  owner = {dkrajzew},\n  timestamp = {2011.11.23},\n  url = {http://elib.dlr.de/70524/}\n}\n\n
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\n Das Institut f�r Verkehrssystemtechnik im Deutschen Zentrum f�r Luft- und Raumfahrt e.V. (DLR) besch�ftigt sich, unter anderem, mit der Entwicklung und Evaluation von Fahrerassistenzsystemen. In diesem Zusammenhang ist das DLR Mitglied im Car-2-Car Communication Consortium, welches eine f�hrende Rolle bei der Erarbeitung von Standards (IEEE 802.11p) f�r die drahtlose �bertragung von Informationen zwischen Fahrzeugen sowie Fahrzeugen und kooperativer Verkehrsinfrastruktur definiert. Erste Demonstrationen zeigen den sinnvollen Einsatz dieser Technologie f�r k�nftige Fahrerassistenzsysteme. Das Ziel dieser Systeme ist es die Sicherheit und die Effizienz im Stra�enverkehr weiter zu erh�hen. Im Entwicklungsprozess von Assistenz- und Automationssystemen werden verschiedene Schritte, beginnend bei Simulationsstudien zur Absch�tzung der Auswirkungen eines neuartigen Systems im Verkehr bis hin zur Evaluation von Prototypen in Feldversuchen, durchlaufen. In der vorliegenden Arbeit wird das Anfahrverhalten von 50 Fahrzeugen simuliert, die sich in einem R�ckstau vor einer Lichtsignalanlage (LSA) befinden. Der Aufbau der Simulation besteht aus einer LSA gesteuerten Kreuzung, deren einzige Fahrtrichtung jeweils die Geradeausfahrt ist. Als Simulationsumgebung wird SUMO verwendet. Das Ziel der Arbeit ist die Untersuchung und Auswertung von drei unterschiedlichen Anfahrszenarien. Zum einen wird das derzeitige Anfahrverhalten abgebildet. Zum anderen werden zwei Fahrerassistenzsysteme betrachtet. Ein Assistenzsystem unterst�tzt den Fahrer, indem ihm die Restzeit der Rotphase angezeigt wird bzw. indem der Assistent den Fahrer beim Beschleunigungsvorgang unterst�tzt. Der andere Assistent �bernimmt vollautomatisch die L�ngsf�hrung der Fahrzeuge. F�r die beiden Assistenten wird die Vehicleto- X Technologie mit einer Durchdringungsrate von 100% vorausgesetzt. Es wird gezeigt, dass durch die Variation der Anfahrstrategie sowohl eine Verringerung der Aufenthaltsdauer des letzten Fahrzeugs in der Simulation (im Folgenden Simulationszeit) von 25% bis 85% als auch die Reduzierung der Anzahl der Gr�nphasen der LSA zum R�umen der Kreuzung von 14 auf 4 m�glich ist. Die Einsparungsm�glichkeiten hinsichtlich des Kraftstoffverbrauchs liegen zwischen 21% und 94%. Weiterhin wurden mit der Gr�nphasendauer und dem Beschleunigungswert zwei Parameter identifiziert, die bedeutenden Einfluss auf den Ablauf der Simulation und das Potential zur Reduzierung der Simulationszeit und des Kraftstoffverbrauchs bzw. der Emission haben.\n
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\n \n\n \n \n \n \n \n \n Identifiability and practical relevance of complex car-following models.\n \n \n \n \n\n\n \n Flötteröd, G.; Wagner, P.; and Wang, Y.\n\n\n \n\n\n\n In Traffic And Granular Flow, September 2011. \n \n\n\n\n
\n\n\n\n \n \n \"IdentifiabilityPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr72232,\n  author = {Gunnar Fl{\\"o}tter{\\"o}d and Peter Wagner and Yun-Pang Wang},\n  title = {Identifiability and practical relevance of complex car-following\n\tmodels},\n  booktitle = {Traffic And Granular Flow},\n  year = {2011},\n  month = {September},\n  abstract = {This article looks at car-following models with a deliberately pragmatic\n\tperspective: What information about driver behavior can be extracted\n\tfrom a given data set without more or less speculative assumptions\n\tabout underlying behavioral laws. The objective of this exercise\n\tis not to invalidate existing models but to obtain a better understanding\n\tof how much (complex) model structure can be revealed/validated from\n\treal data.},\n  keywords = {car following models, ARIMA, calibration},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/72232/}\n}\n\n
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\n This article looks at car-following models with a deliberately pragmatic perspective: What information about driver behavior can be extracted from a given data set without more or less speculative assumptions about underlying behavioral laws. The objective of this exercise is not to invalidate existing models but to obtain a better understanding of how much (complex) model structure can be revealed/validated from real data.\n
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\n \n\n \n \n \n \n \n \n Modeling and Simulating ITS Applications with iTETRIS.\n \n \n \n \n\n\n \n Härri, J.; Cataldi, P.; Krajzewicz, D.; Blokpoel, R. J.; Lopez, Y.; and Leguay, J.\n\n\n \n\n\n\n In MSWiM'11, 14th ACM International Conference on Modeling, Analysis and Simulation of Wireless and Mobile Systems, Oktober 2011. \n \n\n\n\n
\n\n\n\n \n \n \"ModelingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Harri2011,\n  author = {J\\'er\\^ome H\\"arri and Pasquale Cataldi and Daniel Krajzewicz and\n\tRobbin J. Blokpoel and Yoann Lopez and Jeremie Leguay},\n  title = {Modeling and Simulating ITS Applications with iTETRIS},\n  booktitle = {MSWiM'11, 14th ACM International Conference on Modeling, Analysis\n\tand Simulation of Wireless and Mobile Systems},\n  year = {2011},\n  month = {Oktober},\n  abstract = {his work presents the modeling methodology of the iTETRIS platform\n\tto integrate and simulate ITS applications. iTETRIS is a modular\n\tand open-source simulation platform composed of four key modules:\n\tthe network simulator ns-3, the traffic simulator SUMO, an ITS (Intelligent\n\tTransportation System) application simulator, and a central federating\n\tmodule called iCS. Our contribution is twofold: First, we propose\n\ta methodology to model and simulate ITS applications with iTETRIS\n\taround three main mechanisms: (i) message management with generic\n\topen APIs based on subscription/result container mechanisms (ii)\n\tdata management with the integration of an application facilities\n\tlayer in the iCS, including a local dynamic map (LDM), (iii) application\n\tmanagement with an ITS application simulator including one or more\n\tapplication logics. Second, we apply this methodology to implement\n\tthe following four ITS applications: dynamic route planning, bus\n\tlane management, emergency vehicle, and contextual speed adaptation.\n\tWe describe their integrations in iTETRIS, including a characterization\n\tof their interactions with the iCS, and illustrate the benefits of\n\tthese ITS applications on traffic efficiency, gasoline consumption,\n\tor air pollutant emissions.},\n  keywords = {Intelligent Transportation Systems (ITS), Simulation Platform, ITS\n\tApplication, iTETRIS, Performance Evaluation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/70969/}\n}\n\n
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\n his work presents the modeling methodology of the iTETRIS platform to integrate and simulate ITS applications. iTETRIS is a modular and open-source simulation platform composed of four key modules: the network simulator ns-3, the traffic simulator SUMO, an ITS (Intelligent Transportation System) application simulator, and a central federating module called iCS. Our contribution is twofold: First, we propose a methodology to model and simulate ITS applications with iTETRIS around three main mechanisms: (i) message management with generic open APIs based on subscription/result container mechanisms (ii) data management with the integration of an application facilities layer in the iCS, including a local dynamic map (LDM), (iii) application management with an ITS application simulator including one or more application logics. Second, we apply this methodology to implement the following four ITS applications: dynamic route planning, bus lane management, emergency vehicle, and contextual speed adaptation. We describe their integrations in iTETRIS, including a characterization of their interactions with the iCS, and illustrate the benefits of these ITS applications on traffic efficiency, gasoline consumption, or air pollutant emissions.\n
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\n \n\n \n \n \n \n \n CLWPR - A Novel Cross-Layer Optimized Position Based Routing Protocol for VANETs.\n \n \n \n\n\n \n Katsaros, K.; Dianati, M.; Tafazolli, R.; and Kernchen, R.\n\n\n \n\n\n\n In 2011 IEEE Vehicular Networking Conference (VNC) (VNC 2011), pages 200–207, 2011. \n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Katsaros2011b,\n  author = {Katsaros, Konstantinos and Dianati, Mehrdad and Tafazolli, Rahim\n\tand Kernchen, Ralf},\n  title = {{CLWPR - A Novel Cross-Layer Optimized Position Based Routing Protocol\n\tfor VANETs}},\n  booktitle = {2011 IEEE Vehicular Networking Conference (VNC) (VNC 2011)},\n  year = {2011},\n  pages = {200--207},\n  __markedentry = {[dkrajzew:]},\n  abstract = {In this paper, we propose a novel position-based routing protocol\n\tdesigned to anticipate the characteristics of an urban VANET environment.\n\tThe proposed algorithm utilizes the prediction of the node's position\n\tand navigation information to improve the efficiency of routing protocol\n\tin a vehicular network. In addition, we use the information about\n\tlink layer quality in terms of SNIR and MAC frame error rate to further\n\timprove the efficiency of the proposed routing protocol. This in\n\tparticular helps to decrease end-to-end delay. Finally, carry-n-forward\n\tmechanism is employed as a repair strategy in sparse networks. It\n\tis shown that use of this technique increases packet delivery ratio,\n\tbut increases end-to-end delay as well and is not recommended for\n\tQoS constraint services. Our results suggest that compared with GPSR,\n\tour proposal demonstrates better performance in the urban environment.},\n  file = {:http\\://info.ee.surrey.ac.uk/Personal/K.Katsaros/papers/KK_CLWPR_VNC_11.pdf:URL},\n  keywords = {vehicular ad-hoc networks, position based routing, cross-layer.},\n  owner = {dkrajzew},\n  timestamp = {2012.01.25}\n}\n\n
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\n In this paper, we propose a novel position-based routing protocol designed to anticipate the characteristics of an urban VANET environment. The proposed algorithm utilizes the prediction of the node's position and navigation information to improve the efficiency of routing protocol in a vehicular network. In addition, we use the information about link layer quality in terms of SNIR and MAC frame error rate to further improve the efficiency of the proposed routing protocol. This in particular helps to decrease end-to-end delay. Finally, carry-n-forward mechanism is employed as a repair strategy in sparse networks. It is shown that use of this technique increases packet delivery ratio, but increases end-to-end delay as well and is not recommended for QoS constraint services. Our results suggest that compared with GPSR, our proposal demonstrates better performance in the urban environment.\n
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\n \n\n \n \n \n \n \n Performance study of a Green Light Optimized Speed Advisory ( GLOSA ) Application Using an Integrated Cooperative ITS Simulation Platform.\n \n \n \n\n\n \n Katsaros, K.; Kernchen, R.; Dianati, M.; and Rieck, D.\n\n\n \n\n\n\n In International Wireless Communications and Mobile Computing Conference (IWCMC), pages 918–923, 2011. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Katsaros2011a,\n  author = {Katsaros, Konstantinos and Kernchen, Ralf and Dianati, Mehrdad and\n\tRieck, David},\n  title = {{Performance study of a Green Light Optimized Speed Advisory ( GLOSA\n\t) Application Using an Integrated Cooperative ITS Simulation Platform}},\n  booktitle = {International Wireless Communications and Mobile Computing Conference\n\t(IWCMC)},\n  year = {2011},\n  pages = {918--923},\n  __markedentry = {[dkrajzew:]},\n  abstract = {This paper proposes a Green Light Optimized Speed Advisory (GLOSA)\n\tapplication implementation in a typical reference area, and presents\n\tthe results of its performance analysis using an integrated cooperative\n\tITS simulation platform. Our interest was to monitor the impacts\n\tof GLOSA on fuel and traffic efficiency by introducing metrics for\n\taverage fuel consumption and average stop time behind a traffic light,\n\trespectively. For gathering the results we implemented a traffic\n\tscenario defining a single route through an urban area including\n\ttwo traffic lights. The simulations are varied for different penetration\n\trates of GLOSA-equipped vehicles and traffic density. Our results\n\tindicate that GLOSA systems could improve fuel consumption and reduce\n\ttraffic congestion in junctions.},\n  doi = {10.1109/IWCMC.2011.5982524},\n  file = {:http\\://info.ee.surrey.ac.uk/Personal/K.Katsaros/papers/KK_GLOSA_IWCMC_11.pdf:URL},\n  keywords = {GLOSA,fuel consumption,traffic congestion,traffic light advisory,vehicular\n\tcommunications},\n  mendeley-tags = {GLOSA},\n  owner = {dkrajzew},\n  timestamp = {2012.01.25}\n}\n\n
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\n This paper proposes a Green Light Optimized Speed Advisory (GLOSA) application implementation in a typical reference area, and presents the results of its performance analysis using an integrated cooperative ITS simulation platform. Our interest was to monitor the impacts of GLOSA on fuel and traffic efficiency by introducing metrics for average fuel consumption and average stop time behind a traffic light, respectively. For gathering the results we implemented a traffic scenario defining a single route through an urban area including two traffic lights. The simulations are varied for different penetration rates of GLOSA-equipped vehicles and traffic density. Our results indicate that GLOSA systems could improve fuel consumption and reduce traffic congestion in junctions.\n
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\n \n\n \n \n \n \n \n Application of Vehicular Communications for Improving the Efficiency of Traffic in Urban Areas.\n \n \n \n\n\n \n Katsaros, K.; Kernchen, R.; Dianati, M.; Rieck, D.; and Zinoviou, C.\n\n\n \n\n\n\n Wireless Communications and Mobile Computing, 11(12): 1657–1667. 2011.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@ARTICLE{Katsaros2011,\n  author = {Katsaros, Konstantinos and Kernchen, Ralf and Dianati, Mehrdad and\n\tRieck, David and Zinoviou, Charalambos},\n  title = {{Application of Vehicular Communications for Improving the Efficiency\n\tof Traffic in Urban Areas}},\n  journal = {Wireless Communications and Mobile Computing},\n  year = {2011},\n  volume = {11},\n  pages = {1657--1667},\n  number = {12},\n  __markedentry = {[dkrajzew:]},\n  abstract = {This paper studies the impacts of vehicular communications on efficiency\n\tof traffic in urban areas. We consider a Green Light Optimized Speed\n\tAdvisory (GLOSA) application implementation in a typical reference\n\tarea, and present the results of its performance analysis using an\n\tintegrated cooperative ITS simulation platform. In addition, we study\n\troute alternation using Vehicle to Infrastructure (V2I) and Vehicle\n\tto Vehicle (V2V) communications. Our interest was to monitor the\n\timpacts of these applications on fuel and traffic efficiency by introducing\n\tmetrics for average fuel consumption, average stop time behind a\n\ttraffic light and average trip time, respectively. For gathering\n\tthe results we implemented two traffic scenarios defining routes\n\tthrough an urban area including traffic lights. The simulations are\n\tvaried for different penetration rates of application-equipped vehicles,\n\tdrivers compliance to the advised speed and traffic density. Our\n\tresults indicate that GLOSA systems could improve fuel consumption,\n\treduce traffic congestion in junctions and the total trip time.},\n  doi = {10.1002/wcm.1233},\n  file = {:http\\://info.ee.surrey.ac.uk/Personal/K.Katsaros/papers/KK_GLOSA_SI_WCMC_11.pdf:URL},\n  keywords = {fuel consumption,traffic congestion,traffic light advisory,vehicular\n\tcommunications, alternative route},\n  owner = {dkrajzew},\n  timestamp = {2012.01.25}\n}\n\n
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\n This paper studies the impacts of vehicular communications on efficiency of traffic in urban areas. We consider a Green Light Optimized Speed Advisory (GLOSA) application implementation in a typical reference area, and present the results of its performance analysis using an integrated cooperative ITS simulation platform. In addition, we study route alternation using Vehicle to Infrastructure (V2I) and Vehicle to Vehicle (V2V) communications. Our interest was to monitor the impacts of these applications on fuel and traffic efficiency by introducing metrics for average fuel consumption, average stop time behind a traffic light and average trip time, respectively. For gathering the results we implemented two traffic scenarios defining routes through an urban area including traffic lights. The simulations are varied for different penetration rates of application-equipped vehicles, drivers compliance to the advised speed and traffic density. Our results indicate that GLOSA systems could improve fuel consumption, reduce traffic congestion in junctions and the total trip time.\n
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\n \n\n \n \n \n \n \n \n Ökologische Einflüsse ausgewählter Verkehrsmanagementansätze.\n \n \n \n \n\n\n \n Krajzewicz, D.; Bieker, L.; Brockfeld, E.; Nippold, R.; and Ringel, J.\n\n\n \n\n\n\n In Heureka '11, März 2011. \n \n\n\n\n
\n\n\n\n \n \n \"ÖkologischePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2011,\n  author = {Daniel Krajzewicz and Laura Bieker and Elmar Brockfeld and Ronald\n\tNippold and Julia Ringel},\n  title = {\\"Okologische Einfl\\"usse ausgew\\"ahlter Verkehrsmanagementans\\"atze},\n  booktitle = {Heureka '11},\n  year = {2011},\n  month = {M\\"arz},\n  abstract = {Eine der Aufgaben innerhalb des von der Europ?ischen Kommission kofinanzierten\n\tProjektes ?iTETRIS? war die Betrachtung der ?kologischen Auswirkungen\n\tvon Verkehrsmanagementma?nahmen. Um diese Aufgabe erf?llen zu k?nnen\n\twurde die innerhalb dieses Projektes benutzte Verkehrsflusssimulation\n\tSUMO um ein Modell der Schadstoffemission und des Kraftstoffverbrauchs\n\terweitert. Mit Hilfe der so erhaltenen Anwendung wurden Versuche\n\tdurchgef?hrt, die die Abh?ngigkeit zwischen konventionellen Kenngr??en\n\tdes Verkehrsmanagements und den neu errechenbaren ?kologischen Kenngr??en\n\taufdecken sollten. Innerhalb dieses Berichts werden neben dem Emissionsmodell\n\tdie Ergebnisse dieser Untersuchungen vorgestellt, wobei ein starker\n\tZusammenhang zwischen konventionellen und ?kologischen Kenngr??en\n\tfestgestellt wird.},\n  keywords = {Schadstoffemission, Routenwahl, Verkehrsmanagement},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/69859/}\n}\n\n
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\n Eine der Aufgaben innerhalb des von der Europ?ischen Kommission kofinanzierten Projektes ?iTETRIS? war die Betrachtung der ?kologischen Auswirkungen von Verkehrsmanagementma?nahmen. Um diese Aufgabe erf?llen zu k?nnen wurde die innerhalb dieses Projektes benutzte Verkehrsflusssimulation SUMO um ein Modell der Schadstoffemission und des Kraftstoffverbrauchs erweitert. Mit Hilfe der so erhaltenen Anwendung wurden Versuche durchgef?hrt, die die Abh?ngigkeit zwischen konventionellen Kenngr??en des Verkehrsmanagements und den neu errechenbaren ?kologischen Kenngr??en aufdecken sollten. Innerhalb dieses Berichts werden neben dem Emissionsmodell die Ergebnisse dieser Untersuchungen vorgestellt, wobei ein starker Zusammenhang zwischen konventionellen und ?kologischen Kenngr??en festgestellt wird.\n
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\n \n\n \n \n \n \n \n \n Large-scale Vehicle Routing Scenarios based on Pollutant Emission.\n \n \n \n \n\n\n \n Krajzewicz, D.; and Wagner, P.\n\n\n \n\n\n\n In Meyer, G.; and Valldorf, J., editor(s), AMAA 2011, pages 237–246, Juni 2011. Springer\n \n\n\n\n
\n\n\n\n \n \n \"Large-scalePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2011a,\n  author = {Daniel Krajzewicz and Peter Wagner},\n  title = {Large-scale Vehicle Routing Scenarios based on Pollutant Emission},\n  booktitle = {AMAA 2011},\n  year = {2011},\n  editor = {Gereon Meyer and J\\"urgen Valldorf},\n  pages = {237--246},\n  month = {Juni},\n  publisher = {Springer},\n  abstract = {This paper describes simulation-based investigations on route choice\n\tbased on pollutant emission. A microscopic simulation enhanced by\n\ta pollutant emission model was used to evaluate whether a vehicle?s\n\tpollutant emission can be used as an edge weight during route computation\n\tand which effects can be observed in such cases. For each of the\n\tpollutants CO, CO2, NOx, PMx, and HC and for the fuel consumption,\n\ta dynamic user assignment has been performed. The investigations\n\thave been performed twice, using two scenarios of different size.\n\tLarge discrepancies for route computation using pollutants have been\n\tobserved when comparing inner-city and suburban traffic networks.},\n  journal = {Advanced Microsystems for Automotive Applications 2011},\n  keywords = {pollutant emission, traffic management, route choice, assignment},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/70322/}\n}\n\n
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\n This paper describes simulation-based investigations on route choice based on pollutant emission. A microscopic simulation enhanced by a pollutant emission model was used to evaluate whether a vehicle?s pollutant emission can be used as an edge weight during route computation and which effects can be observed in such cases. For each of the pollutants CO, CO2, NOx, PMx, and HC and for the fuel consumption, a dynamic user assignment has been performed. The investigations have been performed twice, using two scenarios of different size. Large discrepancies for route computation using pollutants have been observed when comparing inner-city and suburban traffic networks.\n
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\n \n\n \n \n \n \n \n An Integrated Architecture for Autonomous Vehicles Simulation.\n \n \n \n\n\n \n Pereira, J. L. F.\n\n\n \n\n\n\n Master's thesis, Faculdade de Engenharia da Universidade do Porto, June 2011.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@MASTERSTHESIS{Pereira2011,\n  author = {Jos� Luis Ferr�s Pereira},\n  title = {An Integrated Architecture for Autonomous Vehicles Simulation},\n  school = {Faculdade de Engenharia da Universidade do Porto},\n  year = {2011},\n  month = {June},\n  abstract = {Research on autonomous vehicles has come a long way since first findings,\n\tand its software tools\n\n\tare increasingly acclaimed by the research community. Particularly\n\twith robotics simulators, autonomous\n\n\tvehicles were provided with a suitable test-bed for experimentation\n\tof new methodologies\n\n\tsuch as long-term navigation algorithms, map building and intelligent\n\treasoning. However,\n\n\twhen it concerns the deployment and validation of such vehicles in\n\ta larger urban traffic scenario,\n\n\trobotics simulators do not seem to provide the required functionality\n\tfor road traffic analysis, or\n\n\tinter-vehicular communication infrastructure as they seem present\n\tin today�s traffic simulators.\n\n\tThe improvement of such features is the key for the successful practical\n\tdeployment of such a\n\n\tcritical system.\n\n\n\tThe main objective of this dissertation is the integration of two\n\ttypes of simulators, namely a\n\n\trobotics and a traffic simulator. This integration will enable autonomous\n\tvehicles to be deployed\n\n\tin a rather realistic traffic flow as an agent entity (on the traffic\n\tsimulator), at the same time it\n\n\tsimulates all its sensors and actuators (on the robotics counterpart).\n\tAlso, the statistical tools\n\n\tavailable in the traffic simulator will allow practitioners to infer\n\twhat kind of advantages such a\n\n\tnovel technology will bring to our everyday�s lives. Furthermore,\n\tthe current features and issues on\n\n\tcurrent robotics and traffic simulators are presented and a taxonomy\n\tfor selecting these simulators\n\n\tis proposed. An architecture for the integration of the aforementioned\n\tsimulators is proposed and\n\n\timplemented in the light of the most desired features of such software\n\tenvironments.\n\n\n\tTo assess the usefulness of the platform architecture towards the\n\texpected realistic simulation\n\n\tfacility, a comprehensive system evaluation is also performed and\n\tcritically reviewed, leveraging\n\n\tthe feasibility of the integration. Further developments and future\n\tperspectives are pinpointed up\n\n\tin the end.},\n  file = {:https\\://sumo.dlr.de/pdf/mieec1.pdf:URL},\n  keywords = {autonomous driving, SUMO, driver modelling, Universidade de Porto,\n\tModels},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30}\n}\n\n
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\n Research on autonomous vehicles has come a long way since first findings, and its software tools are increasingly acclaimed by the research community. Particularly with robotics simulators, autonomous vehicles were provided with a suitable test-bed for experimentation of new methodologies such as long-term navigation algorithms, map building and intelligent reasoning. However, when it concerns the deployment and validation of such vehicles in a larger urban traffic scenario, robotics simulators do not seem to provide the required functionality for road traffic analysis, or inter-vehicular communication infrastructure as they seem present in today�s traffic simulators. The improvement of such features is the key for the successful practical deployment of such a critical system. The main objective of this dissertation is the integration of two types of simulators, namely a robotics and a traffic simulator. This integration will enable autonomous vehicles to be deployed in a rather realistic traffic flow as an agent entity (on the traffic simulator), at the same time it simulates all its sensors and actuators (on the robotics counterpart). Also, the statistical tools available in the traffic simulator will allow practitioners to infer what kind of advantages such a novel technology will bring to our everyday�s lives. Furthermore, the current features and issues on current robotics and traffic simulators are presented and a taxonomy for selecting these simulators is proposed. An architecture for the integration of the aforementioned simulators is proposed and implemented in the light of the most desired features of such software environments. To assess the usefulness of the platform architecture towards the expected realistic simulation facility, a comprehensive system evaluation is also performed and critically reviewed, leveraging the feasibility of the integration. Further developments and future perspectives are pinpointed up in the end.\n
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\n \n\n \n \n \n \n \n \n An airborne camera system for rapid mapping in case of disaster and mass events.\n \n \n \n \n\n\n \n Rosenbaum, D.; Behrisch, M.; Leitloff, J.; Kurz, F.; Meynberg, O.; Reize, T.; and Reinartz, P.\n\n\n \n\n\n\n In EOGC 2011, April 2011. \n \n\n\n\n
\n\n\n\n \n \n \"AnPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Rosenbaum2011,\n  author = {Dominik Rosenbaum and Michael Behrisch and Jens Leitloff and Franz\n\tKurz and Oliver Meynberg and Tanja Reize and Peter Reinartz},\n  title = {An airborne camera system for rapid mapping in case of disaster and\n\tmass events},\n  booktitle = {EOGC 2011},\n  year = {2011},\n  month = {April},\n  abstract = {Here we present an airborne optical camera system with an extended\n\timage processing unit onboard the aircraft and a radio data downlink.\n\tWith all these components the system is well suited for rapid mapping\n\tapplications in case of mass events and disaster. The image processing\n\tunit provides the possibility of direct orthorectification/georeferencing\n\tof the aerial images by the use of an IMU/GPS real-time navigation\n\tsystem without the use of ground control points. Furthermore thematic\n\tprocessing algorithms implemented to the image processing unit can\n\tanalyse orthoimages e.g. for road traffic data content, people density\n\tand movement during mass events or DSM generation and 3D analysis\n\tdirectly onboard the aircraft. Resulting data and images can be transmitted\n\tto the ground via radio data downlink immediately. Road traffic data\n\tis used at the ground station in a traffic simulation for filling\n\tcoverage gaps and traffic forecast. All in all, the system forms\n\ta powerful tool to operation controllers of security authorities\n\tand organizations in case of mass events or disasters.},\n  journal = {Proceedings of the Earth Observation for Global Change 2011 - EOGC\n\t2011 (Munich, Germany, 2011-04-13 to 2011-04-15)},\n  keywords = {Rapid Mapping, Monitoring, Recognition, Orthorectification, Georeferencing,\n\tImage, Pattern, Sequences},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/70510/}\n}\n\n
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\n Here we present an airborne optical camera system with an extended image processing unit onboard the aircraft and a radio data downlink. With all these components the system is well suited for rapid mapping applications in case of mass events and disaster. The image processing unit provides the possibility of direct orthorectification/georeferencing of the aerial images by the use of an IMU/GPS real-time navigation system without the use of ground control points. Furthermore thematic processing algorithms implemented to the image processing unit can analyse orthoimages e.g. for road traffic data content, people density and movement during mass events or DSM generation and 3D analysis directly onboard the aircraft. Resulting data and images can be transmitted to the ground via radio data downlink immediately. Road traffic data is used at the ground station in a traffic simulation for filling coverage gaps and traffic forecast. All in all, the system forms a powerful tool to operation controllers of security authorities and organizations in case of mass events or disasters.\n
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\n \n\n \n \n \n \n \n Large-scale Urban Vehicular Mobility for Networking Research.\n \n \n \n\n\n \n Uppoor, S.; and Fiore, M.\n\n\n \n\n\n\n In IEEE Vehicular Networking Conference (VNC), Amsterdam, The Netherlands, 11 2011. \n \n\n\n\n
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@INPROCEEDINGS{SandeshFiore2011,\n  author = {Sandesh Uppoor and Marco Fiore},\n  title = {Large-scale Urban Vehicular Mobility for Networking Research},\n  booktitle = {IEEE Vehicular Networking Conference (VNC)},\n  year = {2011},\n  address = {Amsterdam, The Netherlands},\n  month = {11},\n  abstract = {Simulation is the tool of choice for the largescale\n\n\tperformance evaluation of upcoming telecommunication\n\n\tnetworking paradigms that involve users aboard vehicles, such\n\n\tas next-generation cellular networks for vehicular access, pure\n\n\tvehicular ad hoc networks, and opportunistic disruption-tolerant\n\n\tnetworks. The single most distinguishing feature of vehicular\n\n\tnetworks simulation lies in the mobility of users, which is the\n\n\tresult of the interaction of complex macroscopic and microscopic\n\n\tdynamics. Notwithstanding the improvements that vehicular mobility\n\n\tmodeling has undergone during the past few years, no car\n\n\ttraffic trace is available today that captures both macroscopic and\n\n\tmicroscopic behaviors of drivers over a large urban region, and\n\n\tdoes so with the level of detail required for networking research.\n\n\tIn this paper, we present a realistic synthetic dataset of the car\n\n\ttraffic over a typical 24 hours in a 400-km2 region around the city\n\n\tof K�oln, in Germany. We outline how our mobility description\n\n\timproves today�s existing traces and show the potential impact\n\n\tthat a comprehensive representation of vehicular mobility can\n\n\thave one the evaluation of networking technologies.},\n  file = {:http\\://kolntrace.project.citi-lab.fr/data/uppoor_vnc11.pdf:URL},\n  owner = {dkrajzew},\n  timestamp = {2011.12.01}\n}\n\n
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\n Simulation is the tool of choice for the largescale performance evaluation of upcoming telecommunication networking paradigms that involve users aboard vehicles, such as next-generation cellular networks for vehicular access, pure vehicular ad hoc networks, and opportunistic disruption-tolerant networks. The single most distinguishing feature of vehicular networks simulation lies in the mobility of users, which is the result of the interaction of complex macroscopic and microscopic dynamics. Notwithstanding the improvements that vehicular mobility modeling has undergone during the past few years, no car traffic trace is available today that captures both macroscopic and microscopic behaviors of drivers over a large urban region, and does so with the level of detail required for networking research. In this paper, we present a realistic synthetic dataset of the car traffic over a typical 24 hours in a 400-km2 region around the city of K�oln, in Germany. We outline how our mobility description improves today�s existing traces and show the potential impact that a comprehensive representation of vehicular mobility can have one the evaluation of networking technologies.\n
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\n \n\n \n \n \n \n \n \n Route choice calibration from multi-point vehicle stream measurements.\n \n \n \n \n\n\n \n Wang, Y.; and Flötteröd, G.\n\n\n \n\n\n\n In MT-ITS 2011, Juni 2011. \n \n\n\n\n
\n\n\n\n \n \n \"RoutePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr71872,\n  author = {Yun-Pang Wang and Gunnar Fl{\\"o}tter{\\"o}d},\n  title = {Route choice calibration from multi-point vehicle stream measurements},\n  booktitle = {MT-ITS 2011},\n  year = {2011},\n  month = {Juni},\n  abstract = {To better und more precisely assess different transporta-tion design\n\talternatives and traffic management strategies, microscopic traffic\n\tsimulation models are extensively applied. The respective calibration\n\tand validation works are getting more and more important. Nowadays,\n\tGPS-based systems are broadly applied. More and more route related\n\tinformation can be collected, which promises great improvements of\n\tcalibra-tion accuracy. An approach using multi-point vehicle stream\n\tmeasurements is proposed in this paper and is shown to work well\n\tin synthetic experiments.},\n  keywords = {route choice, vehicle reidentification, traffic simulation SUMO, CADYTS},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/71872/}\n}\n\n
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\n To better und more precisely assess different transporta-tion design alternatives and traffic management strategies, microscopic traffic simulation models are extensively applied. The respective calibration and validation works are getting more and more important. Nowadays, GPS-based systems are broadly applied. More and more route related information can be collected, which promises great improvements of calibra-tion accuracy. An approach using multi-point vehicle stream measurements is proposed in this paper and is shown to work well in synthetic experiments.\n
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\n \n\n \n \n \n \n \n \n Annäherung an das dynamische Systemoptimum mit Hilfe von Einzelfahrzeuginformationen.\n \n \n \n \n\n\n \n Wang, Y.; Wagner, P.; and Behrisch, M.\n\n\n \n\n\n\n In HEUREKA 2011, März 2011. \n \n\n\n\n
\n\n\n\n \n \n \"AnnäherungPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr77309,\n  author = {Yun-Pang Wang and Peter Wagner and Michael Behrisch},\n  title = {Ann{\\"a}herung an das dynamische Systemoptimum mit Hilfe von Einzelfahrzeuginformationen},\n  booktitle = {HEUREKA 2011},\n  year = {2011},\n  month = {M{\\"a}rz},\n  abstract = {Der Verkehr in einem gegebenen Untersuchungsgebiet organisiert sich\n\tselbst in eine Ann{\\"a}herung an das sogenannte Nutzeroptimum. Im\n\tWiderspruch dazu steht die Forderung von Verkehrsmanagern, ein Systemoptimum\n\tzur besten Nutzung der vorhandenen verkehrlichen Ressourcen anzustreben.\n\tIn der Praxis ist es wegen der sich st{\\"a}ndig ver{\\"a}ndernden\n\tVerkehrszust{\\"a}nde schwierig, Kantenwiderstandsfunktionen zu bestimmen.\n\tHeutzutage k{\\"o}nnen viele Verkehrsinformationen mittlerweile direkt\n\tvon Meldefahrzeugen erfasst werden. Daraus k{\\"o}nnen viele zeitabh{\\"a}ngige\n\tInformationen abgeleitet werden. In dieser Arbeit wird untersucht,\n\tob und wie man auf einfache Weise ein Systemoptimum mit Hilfe einer\n\tmikroskopischen Simulation berechnen kann und welches Ausma{\\ss}\n\tan Informationen zur Ann{\\"a}herung an ein Systemoptimum erforderlich\n\tist.},\n  keywords = {dynamische Systemoptimum, mikroskopische Verkehrssimulation},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/77309/}\n}\n\n
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\n Der Verkehr in einem gegebenen Untersuchungsgebiet organisiert sich selbst in eine Annäherung an das sogenannte Nutzeroptimum. Im Widerspruch dazu steht die Forderung von Verkehrsmanagern, ein Systemoptimum zur besten Nutzung der vorhandenen verkehrlichen Ressourcen anzustreben. In der Praxis ist es wegen der sich ständig verändernden Verkehrszustände schwierig, Kantenwiderstandsfunktionen zu bestimmen. Heutzutage können viele Verkehrsinformationen mittlerweile direkt von Meldefahrzeugen erfasst werden. Daraus können viele zeitabhängige Informationen abgeleitet werden. In dieser Arbeit wird untersucht, ob und wie man auf einfache Weise ein Systemoptimum mit Hilfe einer mikroskopischen Simulation berechnen kann und welches Ausmaß an Informationen zur Annäherung an ein Systemoptimum erforderlich ist.\n
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\n  \n 2010\n \n \n (12)\n \n \n
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\n \n\n \n \n \n \n \n \n A Trust Model for Intervehicular Communication Based on Belief Theory.\n \n \n \n \n\n\n \n Bamberger, W.; Schlittenlacher, J.; and Diepold, K.\n\n\n \n\n\n\n In Social Computing (SocialCom), 2010 IEEE Second International Conference on, pages 73-80, 2010. IEEE Computer Society\n Best SocialCom Conference Paper Award\n\n\n\n
\n\n\n\n \n \n \"APaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 8 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Bamberger2010,\n  author = {Walter Bamberger and Josef Schlittenlacher and Klaus Diepold},\n  title = {A Trust Model for Intervehicular Communication Based on Belief Theory},\n  booktitle = {Social Computing (SocialCom), 2010 IEEE Second International Conference\n\ton},\n  year = {2010},\n  pages = {73-80},\n  publisher = {IEEE Computer Society},\n  note = {Best SocialCom Conference Paper Award},\n  abstract = {Vehicles will exchange much information in the future in order to\n\tefficiently maintain their inner model of the environment. Before\n\tthey can belief received pieces of information, they must evaluate\n\ttheir reliability. Trust is a mechanism to estimate this reliability\n\tbased on the sender. As cars often drive the same route, they meet\n\teach other again and again. They can establish friendship-like relations\n\tand thus are embedded in a social structure. A trust model depends\n\ton this social structure. For this reason, we simulate the driving\n\tpattern of a small town. Within this simulation, all cars are equipped\n\twith a trust model that continuously monitors the experiences made\n\twith others. The developed model focuses on direct experiences of\n\tthe individual and not on a system-wide reputation which would depend\n\ton a central unit. It continuously evaluates the performance and\n\treputation of other cars and includes a feedback loop to faster adapt\n\tto changes in the other�s behaviour. To make a decision out of the\n\tcollected data, the model uses the capacity of the binary error and\n\terasure channel from information theory. This capacity provides a\n\tbetter decision criterion than the traditional expectation value.\n\tThe proposed trust model is an individual-level model; nonetheless\n\tit can be connected to a system-wide reputation mechanism.},\n  doi = {10.1109/SocialCom.2010.20},\n  keywords = {V2X, sumo, Technische Universit�t M�nchen, Fidens, automobiles, road\n\ttraffic, security of data, telecommunication security, belief theory,\n\tcars, driving pattern, vehicular network, social structure, trust\n\tmodel},\n  url = {http://mediatum.ub.tum.de/node?id=997457}\n}\n\n
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\n Vehicles will exchange much information in the future in order to efficiently maintain their inner model of the environment. Before they can belief received pieces of information, they must evaluate their reliability. Trust is a mechanism to estimate this reliability based on the sender. As cars often drive the same route, they meet each other again and again. They can establish friendship-like relations and thus are embedded in a social structure. A trust model depends on this social structure. For this reason, we simulate the driving pattern of a small town. Within this simulation, all cars are equipped with a trust model that continuously monitors the experiences made with others. The developed model focuses on direct experiences of the individual and not on a system-wide reputation which would depend on a central unit. It continuously evaluates the performance and reputation of other cars and includes a feedback loop to faster adapt to changes in the other�s behaviour. To make a decision out of the collected data, the model uses the capacity of the binary error and erasure channel from information theory. This capacity provides a better decision criterion than the traditional expectation value. The proposed trust model is an individual-level model; nonetheless it can be connected to a system-wide reputation mechanism.\n
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\n \n\n \n \n \n \n \n \n Adding intermodality to the microscopic simulation package SUMO.\n \n \n \n \n\n\n \n Behrisch, M.; Erdmann, J.; and Krajzewicz, D.\n\n\n \n\n\n\n In MESM 2010, Dezember 2010. \n \n\n\n\n
\n\n\n\n \n \n \"AddingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Behrisch2010a,\n  author = {Michael Behrisch and Jakob Erdmann and Daniel Krajzewicz},\n  title = {Adding intermodality to the microscopic simulation package SUMO},\n  booktitle = {MESM 2010},\n  year = {2010},\n  month = {Dezember},\n  abstract = {It is shown how the traffc simulation SUMO which traditionally focused\n\ton individual road traffc could be extended to serve the purpose\n\tof a general traffic simulation (including transport of individual\n\tpersons) while retaining most of in- and output formats and the performance\n\tof the original system.},\n  file = {:http\\://elib.dlr.de/65964/1/intermodalSumo.pdf:URL},\n  keywords = {Traffic, Microsimulation, Intermodal, SUMO},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/65964/}\n}\n\n
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\n It is shown how the traffc simulation SUMO which traditionally focused on individual road traffc could be extended to serve the purpose of a general traffic simulation (including transport of individual persons) while retaining most of in- and output formats and the performance of the original system.\n
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\n \n\n \n \n \n \n \n \n Traffic Management Decision Support based on on-line Data.\n \n \n \n \n\n\n \n Behrisch, M.; Hohloch, M.; Junghans, M.; Kuhns, G.; Krajzewicz, D.; and Wang, Y.\n\n\n \n\n\n\n In 2010 POLIS CONFERENCE - 'Innovation in transport for sustainable cities and regions', November 2010. \n \n\n\n\n
\n\n\n\n \n \n \"TrafficPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Behrisch2010,\n  author = {Michael Behrisch and Marc Hohloch and Marek Junghans and G\\"unter\n\tKuhns and Daniel Krajzewicz and Yun-Pang Wang},\n  title = {Traffic Management Decision Support based on on-line Data},\n  booktitle = {2010 POLIS CONFERENCE - 'Innovation in transport for sustainable\n\tcities and regions'},\n  year = {2010},\n  month = {November},\n  abstract = {Natural disasters, industrial accidents, technological disasters as\n\twell as terrorist attacks have raised a great attention to road traffic\n\tmanagement in emergencies and disasters worldwide. The road system\n\tis the essential infrastructure for mobility and accessibility. It\n\tis important in daily life and especially in disasters and emergencies.\n\tTherefore, a successful road traffic management in such situations\n\tshould minimize losses in life and goods as well as economical losses\n\tand assets through incident prevention, mitigation, preparedness,\n\tresponse and recovery.\n\n\tBased on this concern, the German Aerospace Center has been continuously\n\tundertaking the development of a real-time web-based decision support\n\tsystem within four R&D projects, WJT2005, Soccer2006, DELPHI and\n\tVABENE, since 2005. A pilot version of the new portal has already\n\tbeen established in the demonstration region Munich in 2007.\n\n\tThis system mainly aims to - establish a shared online traffic information\n\tplatform and decision-making support tool for the law enforcement\n\tand emergency services - use available traffic information as best\n\tas possible for online traffic monitoring and evaluation, and - provide\n\taccurate traffic forecasting for supporting the decision-making in\n\ttraffic management.},\n  keywords = {online traffic management, decision support system},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/65965/}\n}\n\n
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\n Natural disasters, industrial accidents, technological disasters as well as terrorist attacks have raised a great attention to road traffic management in emergencies and disasters worldwide. The road system is the essential infrastructure for mobility and accessibility. It is important in daily life and especially in disasters and emergencies. Therefore, a successful road traffic management in such situations should minimize losses in life and goods as well as economical losses and assets through incident prevention, mitigation, preparedness, response and recovery. Based on this concern, the German Aerospace Center has been continuously undertaking the development of a real-time web-based decision support system within four R&D projects, WJT2005, Soccer2006, DELPHI and VABENE, since 2005. A pilot version of the new portal has already been established in the demonstration region Munich in 2007. This system mainly aims to - establish a shared online traffic information platform and decision-making support tool for the law enforcement and emergency services - use available traffic information as best as possible for online traffic monitoring and evaluation, and - provide accurate traffic forecasting for supporting the decision-making in traffic management.\n
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\n \n\n \n \n \n \n \n \n Comparing Performance and Quality of Traffic Assignments for Microscopic Simulation.\n \n \n \n \n\n\n \n Behrisch, M.; Krajzewicz, D.; Wagner, P.; and Wang, Y.\n\n\n \n\n\n\n In Tampere, C. M.; Viti, F.; and Immers, L. H. (., editor(s), pages 361–386. Edward Elgar Publishing Limited, 2010.\n \n\n\n\n
\n\n\n\n \n \n \"ComparingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@INCOLLECTION{dlr81244,\n  author = {Michael Behrisch and Daniel Krajzewicz and Peter Wagner and Yun-Pang\n\tWang},\n  title = {Comparing Performance and Quality of Traffic Assignments for Microscopic\n\tSimulation},\n  publisher = {Edward Elgar Publishing Limited},\n  year = {2010},\n  editor = {Chris M.J. Tampere and Francesco Viti and Lambertus H. (Ben) Immers},\n  pages = {361--386},\n  journal = {New Developments in Transport Planning - Advances in Dynamic Traffic\n\tAssignment},\n  keywords = {dynamic traffic assignment, traffic simulation},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/81244/}\n}\n\n
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\n \n\n \n \n \n \n \n \n Derivation of a fast, approximating 802.11p simulation model.\n \n \n \n \n\n\n \n Bieker, L.; Krajzewicz, D.; Röckl, M.; and Capelle, H.\n\n\n \n\n\n\n In Intelligent Transport Systems Telecommunications (ITST2010), November 2010. \n \n\n\n\n
\n\n\n\n \n \n \"DerivationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Bieker2010,\n  author = {Laura Bieker and Daniel Krajzewicz and Matthias R\\"ockl and Hans\n\tCapelle},\n  title = {Derivation of a fast, approximating 802.11p simulation model},\n  booktitle = {Intelligent Transport Systems Telecommunications (ITST2010)},\n  year = {2010},\n  month = {November},\n  abstract = {This paper gives an overview of the development of a fast, approximating\n\tmodel of vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2X)\n\tcommunication. Large-scale traffic simulations need to be fast, and\n\tthe lack of supporting this feature by common communication simulators\n\tmakes the development of a new one necessary. In a vehicular system,\n\tpacket error rate can be significant; hence models that consider\n\terror characteristics are desirable. Our work considers communication\n\tmodels that approximate the radio propagation characteristics in\n\ta realistic way without compromising simulation speed.},\n  keywords = {V2X communication, Traffic simulation, Radio Propagation, Packet Error\n\tRate},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/66094/}\n}\n\n
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\n This paper gives an overview of the development of a fast, approximating model of vehicle-to-vehicle (V2V) and vehicle-to-infrastructure (V2X) communication. Large-scale traffic simulations need to be fast, and the lack of supporting this feature by common communication simulators makes the development of a new one necessary. In a vehicular system, packet error rate can be significant; hence models that consider error characteristics are desirable. Our work considers communication models that approximate the radio propagation characteristics in a realistic way without compromising simulation speed.\n
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\n \n\n \n \n \n \n \n \n Unambiguous metrics for evaluation of traffic networks.\n \n \n \n \n\n\n \n Blokpoel, R.; Krajzewicz, D.; and Nippold, R.\n\n\n \n\n\n\n In 13th International IEEE Conference on Intelligent Transportation Systems (ITSC), September 2010. \n \n\n\n\n
\n\n\n\n \n \n \"UnambiguousPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Blokpoel2010,\n  author = {Robbin Blokpoel and Daniel Krajzewicz and Ronald Nippold},\n  title = {Unambiguous metrics for evaluation of traffic networks},\n  booktitle = {13th International IEEE Conference on Intelligent Transportation\n\tSystems (ITSC)},\n  year = {2010},\n  month = {September},\n  abstract = {This paper presents an extensive set of unambiguous metrics that can\n\tbe used for evaluation of new ITS applications. Currently in the\n\tliterature most authors define their own metrics and small differences\n\tin definitions can lead to confusion when comparing the results.\n\tTo derive the set of metrics presented in this paper, several steps\n\thave been taken. First, a list has been made with all metrics known\n\tby the research partners. Afterwards, a set of base measures has\n\tbeen defined. Using that set, clear formulas for all metrics have\n\tbeen derived and are reported in this paper. Finally, an application\n\texample about a cooperative traffic light controller is given.},\n  keywords = {simulation, performance indicators, performance metrics, traffic science,\n\ttraffic management},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/67734/}\n}\n\n
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\n This paper presents an extensive set of unambiguous metrics that can be used for evaluation of new ITS applications. Currently in the literature most authors define their own metrics and small differences in definitions can lead to confusion when comparing the results. To derive the set of metrics presented in this paper, several steps have been taken. First, a list has been made with all metrics known by the research partners. Afterwards, a set of base measures has been defined. Using that set, clear formulas for all metrics have been derived and are reported in this paper. Finally, an application example about a cooperative traffic light controller is given.\n
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\n \n\n \n \n \n \n \n \n Einf�hrung von Unit Tests in das bestehende C++ Softwaresystem SUMO.\n \n \n \n \n\n\n \n Heppner, M.\n\n\n \n\n\n\n Master's thesis, Humboldt-Universit�t zu Berlin, January 2010.\n \n\n\n\n
\n\n\n\n \n \n \"Einf�hrungPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@MASTERSTHESIS{Heppner2010,\n  author = {Matthias Heppner},\n  title = {Einf�hrung von Unit Tests in das bestehende C++ Softwaresystem SUMO},\n  school = {Humboldt-Universit�t zu Berlin},\n  year = {2010},\n  month = {January},\n  owner = {behr_mi},\n  timestamp = {2011.12.05},\n  url = {http://www2.informatik.hu-berlin.de/swt/dipl/MatthiasHeppner.2010.pdf}\n}\n\n
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\n \n\n \n \n \n \n \n \n .\n \n \n \n \n\n\n \n Krajzewicz, D.\n\n\n \n\n\n\n of International Series in Operations Research and Management Science. Traffic Simulation with SUMO - Simulation of Urban Mobility, pages 269–294. Barceló, J., editor(s). Springer, October 2010.\n \n\n\n\n
\n\n\n\n \n \n \"TrafficPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@INBOOK{Krajzewicz2010b,\n  pages = {269--294},\n  title = {Traffic Simulation with SUMO - Simulation of Urban Mobility},\n  publisher = {Springer},\n  year = {2010},\n  editor = {Jaume Barcel\\'o},\n  author = {Daniel Krajzewicz},\n  series = {International Series in Operations Research and Management Science},\n  month = {October},\n  journal = {Fundamentals of Traffic Simulation},\n  keywords = {traffic simulation, sumo},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/66135/}\n}\n\n
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\n \n\n \n \n \n \n \n \n Investigating Ecological Impacts on selected Traffic Management Methods.\n \n \n \n \n\n\n \n Krajzewicz, D.; and Bieker, L.\n\n\n \n\n\n\n In NEARCTIS 3rd Workshop, Juni 2010. \n \n\n\n\n
\n\n\n\n \n \n \"InvestigatingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2010a,\n  author = {Daniel Krajzewicz and Laura Bieker},\n  title = {Investigating Ecological Impacts on selected Traffic Management Methods},\n  booktitle = {NEARCTIS 3rd Workshop},\n  year = {2010},\n  month = {Juni},\n  abstract = {Within the iTETRIS project, the used SUMO traffic simulation was extended\n\tby models for computing the emissions of pollutants CO, CO2, HC,\n\tPMx, and NOx, as well as for computing the fuel consumption on a\n\tmicroscopic, per-vehicle, base. The emission model was based on the\n\tHBEFA (?Handbuch der Emissionsfaktoren?) database which covers a\n\tlarge variety of vehicle types, considering differences between passenger\n\tand heavy duty vehicles, the engine displacement, the fuel type,\n\tand the EURO emission norm of the vehicles. This database was reformulated\n\tinto a microscopic model which uses the vehicle class, the vehicle?s\n\tspeed and the vehicle?s acceleration for computing the amount of\n\ta certain pollutant?s emission within one discrete time step. The\n\tkind of this model?s embedding within SUMO allows to collect and\n\tto evaluate the ecological impacts of traffic management strategies\n\ton per-vehicle, per-lane, and per-road base. Using this information,\n\ttwo sub-topics of traffic management were addressed: ecological routing\n\tand the ecological impacts of traffic lights.},\n  keywords = {traffic management, ecological issues, navigation, traffic lights},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/64840/}\n}\n\n
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\n Within the iTETRIS project, the used SUMO traffic simulation was extended by models for computing the emissions of pollutants CO, CO2, HC, PMx, and NOx, as well as for computing the fuel consumption on a microscopic, per-vehicle, base. The emission model was based on the HBEFA (?Handbuch der Emissionsfaktoren?) database which covers a large variety of vehicle types, considering differences between passenger and heavy duty vehicles, the engine displacement, the fuel type, and the EURO emission norm of the vehicles. This database was reformulated into a microscopic model which uses the vehicle class, the vehicle?s speed and the vehicle?s acceleration for computing the amount of a certain pollutant?s emission within one discrete time step. The kind of this model?s embedding within SUMO allows to collect and to evaluate the ecological impacts of traffic management strategies on per-vehicle, per-lane, and per-road base. Using this information, two sub-topics of traffic management were addressed: ecological routing and the ecological impacts of traffic lights.\n
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\n \n\n \n \n \n \n \n \n iTETRIS - A System for the Evaluation of Cooperative Traffic Management Solutions.\n \n \n \n \n\n\n \n Krajzewicz, D.; Blokpoel, R.; Cartolano, F.; Cataldi, P.; Gonzalez, A.; Lazaro, O.; Leguay, J.; Lin, L.; Maneros, J.; and Rondinone, M.\n\n\n \n\n\n\n In Meyer, G.; and Valldorf, J., editor(s), AMAA 2010, of VDI-Buch, pages 399–410, Mai 2010. Springer\n \n\n\n\n
\n\n\n\n \n \n \"iTETRISPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2010,\n  author = {Daniel Krajzewicz and Robbin Blokpoel and Fabio Cartolano and Pasquale\n\tCataldi and Ainara Gonzalez and Oscar Lazaro and J\\'er\\'emie Leguay\n\tand Lan Lin and Julen Maneros and Michele Rondinone},\n  title = {iTETRIS - A System for the Evaluation of Cooperative Traffic Management\n\tSolutions},\n  booktitle = {AMAA 2010},\n  year = {2010},\n  editor = {Gereon Meyer and J\\"urgen Valldorf},\n  series = {VDI-Buch},\n  pages = {399--410},\n  month = {Mai},\n  publisher = {Springer},\n  abstract = {V2X communication - communication between vehicles (V2V) and between\n\tvehicles and infrastructure (V2I) - promises new methods for traffic\n\tmanagement by supplying new data and by opening new ways to inform\n\tdrivers about the current situation on the roads. Currently, V2X\n\tcooperative systems are under development, forced by both the industry\n\tand by the European Commission which supports the development as\n\ta part of its Intelligent Car Initiative. Within this publication,\n\t"iTETRIS", a new system for simulating V2X-based traffic management\n\tapplications is described which aims on high-quality simulations\n\tof large areas. This is achieved by coupling two well-known open\n\tsource simulators. The sustainability of the project is guaranteed\n\tby making the whole also available as an open source tool.},\n  journal = {Advanced Microsystems for Automotive Applications 2010},\n  keywords = {V2X communication, simulation, traffic management},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/64340/}\n}\n\n
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\n V2X communication - communication between vehicles (V2V) and between vehicles and infrastructure (V2I) - promises new methods for traffic management by supplying new data and by opening new ways to inform drivers about the current situation on the roads. Currently, V2X cooperative systems are under development, forced by both the industry and by the European Commission which supports the development as a part of its Intelligent Car Initiative. Within this publication, \"iTETRIS\", a new system for simulating V2X-based traffic management applications is described which aims on high-quality simulations of large areas. This is achieved by coupling two well-known open source simulators. The sustainability of the project is guaranteed by making the whole also available as an open source tool.\n
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\n \n\n \n \n \n \n \n The impact of traffic-light-to-vehicle communication on fuel consumption and emissions.\n \n \n \n\n\n \n Tielert, T.; Killat, M.; Hartenstein, H.; Luz, R.; Hausberger, S.; and Benz, T.\n\n\n \n\n\n\n In Internet of Things (IOT), 2010, pages 1 -8, 29 2010-dec. 1 2010. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Tielert2010,\n  author = {Tielert, T. and Killat, M. and Hartenstein, H. and Luz, R. and Hausberger,\n\tS. and Benz, T.},\n  title = {The impact of traffic-light-to-vehicle communication on fuel consumption\n\tand emissions},\n  booktitle = {Internet of Things (IOT), 2010},\n  year = {2010},\n  pages = {1 -8},\n  month = {29 2010-dec. 1},\n  __markedentry = {[dkrajzew:6]},\n  abstract = {#x201C;Smart #x201D; vehicles of the future are envisioned to aid\n\ttheir drivers in reducing fuel consumption and emissions by wirelessly\n\treceiving phase-shifting information of the traffic lights in their\n\tvicinity and computing an optimized speed in order to avoid braking\n\tand acceleration maneuvers. Previous studies have demonstrated the\n\tpotential environmental benefit in small-scale simulation scenarios.\n\tTo assess the overall benefit, large-scale simulations are required.\n\tIn order to ensure computational feasibility, the applied simulation\n\tmodels need to be simplified as far as possible without sacrificing\n\tcredibility. Therefore this work presents the results of a sensitivity\n\tanalysis and identifies gear choice and the distance from the traffic\n\tlight at which vehicles are informed as key influencing factors.\n\tOur results indicate that a suboptimal gear choice can void the benefits\n\tof the speed adaptation. Furthermore, we present first results of\n\ta scale-up simulation using a real-world inner-city road network\n\tand discuss the range in which we expect the saving in fuel consumption\n\tto be in reality.},\n  doi = {10.1109/IOT.2010.5678454},\n  file = {:http\\://www.caad.arch.ethz.ch/noolab/files/external/conferences/IoT2010_proceedings/pdf/Conference/GreenIoT/C3.pdf:URL},\n  keywords = {fuel consumption;phase shifting information;smart vehicles;traffic\n\tlights;traffic-light-to-vehicle communication;mobile communication;phase\n\tshifters;},\n  owner = {dkrajzew},\n  timestamp = {2012.01.26}\n}\n\n
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\n #x201C;Smart #x201D; vehicles of the future are envisioned to aid their drivers in reducing fuel consumption and emissions by wirelessly receiving phase-shifting information of the traffic lights in their vicinity and computing an optimized speed in order to avoid braking and acceleration maneuvers. Previous studies have demonstrated the potential environmental benefit in small-scale simulation scenarios. To assess the overall benefit, large-scale simulations are required. In order to ensure computational feasibility, the applied simulation models need to be simplified as far as possible without sacrificing credibility. Therefore this work presents the results of a sensitivity analysis and identifies gear choice and the distance from the traffic light at which vehicles are informed as key influencing factors. Our results indicate that a suboptimal gear choice can void the benefits of the speed adaptation. Furthermore, we present first results of a scale-up simulation using a real-world inner-city road network and discuss the range in which we expect the saving in fuel consumption to be in reality.\n
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\n \n\n \n \n \n \n \n \n Towards a dynamic system optimum based on the simulated traffic data in the microscopic traffic simulation.\n \n \n \n \n\n\n \n Wang, Y.; Wagner, P.; and Behrisch, M.\n\n\n \n\n\n\n In 3rd NEARCTIS workshop, Juni 2010. \n \n\n\n\n
\n\n\n\n \n \n \"TowardsPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr65940,\n  author = {Yun-Pang Wang and Peter Wagner and Michael Behrisch},\n  title = {Towards a dynamic system optimum based on the simulated traffic data\n\tin the microscopic traffic simulation},\n  booktitle = {3rd NEARCTIS workshop},\n  year = {2010},\n  month = {Juni},\n  abstract = {Microscopic traffic simulation has been applied since decades in order\n\tto better describing both drivers? behaviors and interactive effects\n\tamong network infrastructure, drivers and traffic control applications.\n\tFurthermore, it is also used as an evaluation tool for analyzing\n\tinfluences of proposed management strategies and traffic-related\n\ttelematics technologies on network performances, such as efficiency\n\tand safety. Achieving a system optimum in a road network is the main\n\tconcern of traffic managers at all times, although most road users\n\ttend to make the route choice decision which is best suitable for\n\ttheir journeys in practice. The main difference between system optimum\n\tand user equilibrium is the marginal total travel costs, i.e. travel\n\ttimes, which are the costs that an additional road user causes to\n\tthe other road users already in the network during the analysis period.\n\n\tGenerally, travel times can be determined, i.e. approximated, by given\n\tlink travel time functions, which are functions of link flows. The\n\tfunctional forms and respective parameters of the most travel time\n\tfunctions are derived from empirical data. This approach has been\n\textensively applied in the macroscopic traffic modeling and the dynamic\n\ttraffic assignment modeling. Therefore, respective marginal costs\n\tcan be obtained by calculating the corresponding derivatives. However,\n\tsuch travel time functions and their derivates are not required and\n\talso not applied in a microscopic simulation, since the travel time,\n\ttravel flows and other parameters are directly measured in a simulation.\n\tIn this study, how to define and calculate marginal costs with use\n\tof the simulated data is investigated.},\n  keywords = {system optimum, SUMO, microscopic traffic simulation},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/65940/}\n}\n\n
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\n Microscopic traffic simulation has been applied since decades in order to better describing both drivers? behaviors and interactive effects among network infrastructure, drivers and traffic control applications. Furthermore, it is also used as an evaluation tool for analyzing influences of proposed management strategies and traffic-related telematics technologies on network performances, such as efficiency and safety. Achieving a system optimum in a road network is the main concern of traffic managers at all times, although most road users tend to make the route choice decision which is best suitable for their journeys in practice. The main difference between system optimum and user equilibrium is the marginal total travel costs, i.e. travel times, which are the costs that an additional road user causes to the other road users already in the network during the analysis period. Generally, travel times can be determined, i.e. approximated, by given link travel time functions, which are functions of link flows. The functional forms and respective parameters of the most travel time functions are derived from empirical data. This approach has been extensively applied in the macroscopic traffic modeling and the dynamic traffic assignment modeling. Therefore, respective marginal costs can be obtained by calculating the corresponding derivatives. However, such travel time functions and their derivates are not required and also not applied in a microscopic simulation, since the travel time, travel flows and other parameters are directly measured in a simulation. In this study, how to define and calculate marginal costs with use of the simulated data is investigated.\n
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\n \n\n \n \n \n \n \n \n DELPHI - a joint web decision support application for real time traffic situation analysis and prognosis, information exchange and cooperation.\n \n \n \n \n\n\n \n Behrisch, M.; Bonert, M.; Hinkeldein, D.; Krajzewicz, D.; Kuhns, G.; and Wang, Y.\n\n\n \n\n\n\n In ITS World Congress 2009, 2009. \n \n\n\n\n
\n\n\n\n \n \n \"DELPHIPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 11 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Behrisch2009a,\n  author = {Michael Behrisch and Michael Bonert and Daniel Hinkeldein and Daniel\n\tKrajzewicz and G\\"unter Kuhns and Yun-Pang Wang},\n  title = {DELPHI - a joint web decision support application for real time traffic\n\tsituation analysis and prognosis, information exchange and cooperation},\n  booktitle = {ITS World Congress 2009},\n  year = {2009},\n  abstract = {This paper describes DELPHI, a pilot version of a joint web decision\n\tsupport application for real time traffic situation and prognosis,\n\tinformation exchange and cooperation between the Traffic Management\n\tCenter, Emergency Rescue Services, the Police and the Emergency Call\n\tCenter. In two demonstration regions in Germany, Cologne and Munich\n\tthe R&D project started in 2007. The main purpose is to handle major\n\tincidents that affect the transportation situation in conurbation\n\tareas. The web application is intended to help task force members\n\tat different stakeholders to obtain a common and joint overview.\n\tDELPHI also allows to coordinate tactical measures among the task\n\tforces.},\n  keywords = {decision support, TMC, Traffic Management Center, incident management,\n\tITS, Intelligent Transportation System},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/62187/}\n}\n\n
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\n This paper describes DELPHI, a pilot version of a joint web decision support application for real time traffic situation and prognosis, information exchange and cooperation between the Traffic Management Center, Emergency Rescue Services, the Police and the Emergency Call Center. In two demonstration regions in Germany, Cologne and Munich the R&D project started in 2007. The main purpose is to handle major incidents that affect the transportation situation in conurbation areas. The web application is intended to help task force members at different stakeholders to obtain a common and joint overview. DELPHI also allows to coordinate tactical measures among the task forces.\n
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\n \n\n \n \n \n \n \n \n Simulation of Urban MObility.\n \n \n \n \n\n\n \n Behrisch, M.; Krajzewicz, D.; Nippold, R.; and Wang, Y.\n\n\n \n\n\n\n In 2nd NEARCTIS workshop 2009, 2009. \n \n\n\n\n
\n\n\n\n \n \n \"SimulationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Behrisch2009,\n  author = {Michael Behrisch and Daniel Krajzewicz and Ronald Nippold and Yun-Pang\n\tWang},\n  title = {Simulation of Urban MObility},\n  booktitle = {2nd NEARCTIS workshop 2009},\n  year = {2009},\n  keywords = {traffic simulation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/62188/}\n}\n\n
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\n \n\n \n \n \n \n \n \n Disaggregate route choice estimation for the SUMO traffic microsimulator with the Cadyts calibration tool for improved traffic management.\n \n \n \n \n\n\n \n Flötteröd, G.; Krajzewicz, D.; Wang, Y.; Behrisch, M.; and Wagner, P.\n\n\n \n\n\n\n In 2nd NEARCTIS workshop 2009, 2009. \n \n\n\n\n
\n\n\n\n \n \n \"DisaggregatePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr62189,\n  author = {Gunnar Fl{\\"o}tter{\\"o}d and Daniel Krajzewicz and Yun-Pang Wang\n\tand Michael Behrisch and Peter Wagner},\n  title = {Disaggregate route choice estimation for the SUMO traffic microsimulator\n\twith the Cadyts calibration tool for improved traffic management},\n  booktitle = {2nd NEARCTIS workshop 2009},\n  year = {2009},\n  file = {poster:http\\://elib.dlr.de/62189/1/Nearctis_RouteChoiceEstimation_poster.pdf:URL},\n  keywords = {route choice},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/62189/}\n}\n\n
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\n \n\n \n \n \n \n \n \n iTETRIS: the Framework for Large-Scale Research on the Impact of Cooperative Wireless Vehicular Communications Systems in Traffic Efficiency.\n \n \n \n \n\n\n \n GOZALVEZ, J.; TURKSMA, S.; LIN, L.; LAZARO, O.; CARTOLANO, F.; ROBERT, E.; KRAJZEWICZ, D.; BAUZA, R.; FILALI, F.; RÖCKL, M.; LEGUAY, J.; MICHELACCI, C.; VREESWIJK, J.; MANEROS, J.; GONZALEZ, A.; and LENARDI, M.\n\n\n \n\n\n\n In ICT-MobileSummit 2009, 2009. \n \n\n\n\n
\n\n\n\n \n \n \"iTETRIS:Paper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 8 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{GOZALVEZ2009,\n  author = {Javier GOZALVEZ and Siebe TURKSMA and Lan LIN and Oscar LAZARO and\n\tFabio CARTOLANO and Eric ROBERT and Daniel KRAJZEWICZ and Ramon BAUZA\n\tand Fethi FILALI and Matthias R\\"OCKL and Jeremie LEGUAY and Carlo\n\tMICHELACCI and Jaap VREESWIJK and Julen MANEROS and Ainara GONZALEZ\n\tand Massimiliano LENARDI},\n  title = {iTETRIS: the Framework for Large-Scale Research on the Impact of\n\tCooperative Wireless Vehicular Communications Systems in Traffic\n\tEfficiency},\n  booktitle = {ICT-MobileSummit 2009},\n  year = {2009},\n  abstract = {Cooperative vehicular ICT systems have been identified as an attractive\n\ttechnology to improve traffic management and safety, while providing\n\tInternet on the move. To achieve these objectives, cooperative vehicular\n\tcommunication systems allow the dynamic exchange of messages between\n\tvehicles, and between vehicles and infrastructure. To ensure the\n\tefficiency of cooperative vehicular ICT systems, it is crucial that\n\tthe communication protocols are adequately designed and optimised,\n\tand that the applications using such communication capabilities are\n\ttested under realistic conditions. In this context, this paper presents\n\tthe EU-funded iTETRIS platform that is being created to allow for\n\ta realistic and accurate evaluation of the design and impact of cooperative\n\tvehicular communication systems and traffic management policies under\n\trealistic large-scale scenarios.},\n  keywords = {Cooperative vehicular ICT, wireless communications, heterogeneous\n\tsystems, simulation platform, traffic management.},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/62037/}\n}\n\n
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\n Cooperative vehicular ICT systems have been identified as an attractive technology to improve traffic management and safety, while providing Internet on the move. To achieve these objectives, cooperative vehicular communication systems allow the dynamic exchange of messages between vehicles, and between vehicles and infrastructure. To ensure the efficiency of cooperative vehicular ICT systems, it is crucial that the communication protocols are adequately designed and optimised, and that the applications using such communication capabilities are tested under realistic conditions. In this context, this paper presents the EU-funded iTETRIS platform that is being created to allow for a realistic and accurate evaluation of the design and impact of cooperative vehicular communication systems and traffic management policies under realistic large-scale scenarios.\n
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\n \n\n \n \n \n \n \n \n GreenWave distributed traffic intersection control.\n \n \n \n \n\n\n \n Greenwood, D.; Burdiliak, B.; Trencansky, I.; Armbruster, H.; and Dannegger, C.\n\n\n \n\n\n\n In Proceedings of The 8th International Conference on Autonomous Agents and Multiagent Systems - Volume 2, of AAMAS '09, pages 1413–1414, Richland, SC, 2009. International Foundation for Autonomous Agents and Multiagent Systems\n \n\n\n\n
\n\n\n\n \n \n \"GreenWavePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 8 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Greenwood:2009:GDT:1558109.1558322,\n  author = {Dominic Greenwood and Branislav Burdiliak and Ivan Trencansky and\n\tHartmut Armbruster and Christian Dannegger},\n  title = {GreenWave distributed traffic intersection control},\n  booktitle = {Proceedings of The 8th International Conference on Autonomous Agents\n\tand Multiagent Systems - Volume 2},\n  year = {2009},\n  series = {AAMAS '09},\n  pages = {1413--1414},\n  address = {Richland, SC},\n  publisher = {International Foundation for Autonomous Agents and Multiagent Systems},\n  acmid = {1558322},\n  isbn = {978-0-9817381-7-8},\n  keywords = {distributed multiagent traffic intersection phase control, emergent\n\tgreen wave, video camera sensor},\n  location = {Budapest, Hungary},\n  numpages = {2},\n  url = {http://dl.acm.org/citation.cfm?id=1558109.1558322}\n}\n\n
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\n \n\n \n \n \n \n \n Sensor modeling and demonstration of a multi-object spectrometer for performance-driven sensing.\n \n \n \n\n\n \n Kerekes, J.; Presnar, M.; Fourspring, K.; Ninkov, Z.; Pogorzala, D.; Raisanen, A.; Rice, A.; Vasquez, J.; Patel, J.; MacIntyre, R.; and Brown, S.\n\n\n \n\n\n\n In Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, volume 7334, May 2009. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Kerekes2009,\n  author = {{Kerekes}, J.~P. and {Presnar}, M.~D. and {Fourspring}, K.~D. and\n\t{Ninkov}, Z. and {Pogorzala}, D.~R. and {Raisanen}, A.~D. and {Rice},\n\tA.~C. and {Vasquez}, J.~R. and {Patel}, J.~P. and {MacIntyre}, R.~T.\n\tand {Brown}, S.~D.},\n  title = {{Sensor modeling and demonstration of a multi-object spectrometer\n\tfor performance-driven sensing}},\n  booktitle = {Society of Photo-Optical Instrumentation Engineers (SPIE) Conference\n\tSeries},\n  year = {2009},\n  volume = {7334},\n  series = {Society of Photo-Optical Instrumentation Engineers (SPIE) Conference\n\tSeries},\n  month = may,\n  adsnote = {Provided by the SAO/NASA Astrophysics Data System},\n  adsurl = {http://adsabs.harvard.edu/abs/2009SPIE.7334E..17K},\n  doi = {10.1117/12.819265},\n  keywords = {surveillance, Numerica Corporation, Air Force Institute of Technology,\n\tRochester Institute of Technology},\n  owner = {dkrajzew},\n  timestamp = {2011.09.19}\n}\n\n
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\n \n\n \n \n \n \n \n \n Kombination von taktischen und strategischen Einflüssen in einer mikroskopischen Verkehrsflusssimulation.\n \n \n \n \n\n\n \n Krajzewicz, D.\n\n\n \n\n\n\n 2009.\n \n\n\n\n
\n\n\n\n \n \n \"KombinationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@MISC{Krajzewicz2009a,\n  author = {Daniel Krajzewicz},\n  title = {Kombination von taktischen und strategischen Einfl\\"ussen in einer\n\tmikroskopischen Verkehrsflusssimulation},\n  year = {2009},\n  abstract = {Eine mikroskopische Verkehrsflusssimulation gro?er Areale kann nur\n\trealit?tsnah durchge-f?hrt werden, wenn der Algorithmus zur Spurwahl\n\tsowohl taktische als auch strategische Ent-scheidungen des Fahrers\n\tumsetzt. Innerhalb dieser Arbeit wird das aktuell (Stand Juni 2008)\n\tin der freien, mikroskopischen Verkehrsflusssimulation ?SUMO? implementierte\n\tModell vorgestellt und besprochen, welches beide Ebenen vereint.},\n  editor = {Thomas J\\"urgensohn and Harald Kolrep},\n  journal = {Fahrermodellierung in Wissenschaft und Wirtschaft, 2. Berliner Fachtagung\n\tf\\"ur Fahrermodellierung},\n  keywords = {mikroskopische Verkehrsflusssimulation, Spurwechsel},\n  number = {28},\n  owner = {Daniel},\n  pages = {104--115},\n  publisher = {VDI-Verlag},\n  series = {Verein Deutscher Ingenieure [Fortschritt-Berichte VDI / 22]: Fortschritt-Berichte\n\t/ VDI ; Nr. 28 : Reihe 22, Mensch-Maschine-Systeme},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/58663/}\n}\n\n
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\n Eine mikroskopische Verkehrsflusssimulation gro?er Areale kann nur realit?tsnah durchge-f?hrt werden, wenn der Algorithmus zur Spurwahl sowohl taktische als auch strategische Ent-scheidungen des Fahrers umsetzt. Innerhalb dieser Arbeit wird das aktuell (Stand Juni 2008) in der freien, mikroskopischen Verkehrsflusssimulation ?SUMO? implementierte Modell vorgestellt und besprochen, welches beide Ebenen vereint.\n
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\n \n\n \n \n \n \n \n \n iTETRIS: An integrated tool set for evaluation of large-scale traffic management application based on vehicular communication.\n \n \n \n \n\n\n \n Krajzewicz, D.; and Nippold, R.\n\n\n \n\n\n\n In 2nd NEARCTIS workshop 2009, 2009. \n \n\n\n\n
\n\n\n\n \n \n \"iTETRIS:Paper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2009,\n  author = {Daniel Krajzewicz and Ronald Nippold},\n  title = {iTETRIS: An integrated tool set for evaluation of large-scale traffic\n\tmanagement application based on vehicular communication},\n  booktitle = {2nd NEARCTIS workshop 2009},\n  year = {2009},\n  keywords = {traffic simulation, network (communication) simulation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/62588/}\n}\n\n
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\n \n\n \n \n \n \n \n Traffic Modelling: Environmental Factors.\n \n \n \n\n\n \n Krajzewicz, D.; Nippold, R.; and Lazaro, O.\n\n\n \n\n\n\n Technical Report iTETRIS consortium, February 2009.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@TECHREPORT{Krajzewicz2009b,\n  author = {Krajzewicz, Daniel and Nippold, Ronald and Lazaro, Oscar},\n  title = {Traffic Modelling: Environmental Factors},\n  institution = {iTETRIS consortium},\n  year = {2009},\n  type = {Deliverable to the European Commission},\n  month = {February},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08}\n}\n\n
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\n \n\n \n \n \n \n \n \n iTETRIS Platform Architecture for the Integration of Cooperative Traffic and Wireless Simulations.\n \n \n \n \n\n\n \n Maneros, J.; Rondinone, M.; Gonzalez, A.; Bauza, R.; and Krajzewicz, D.\n\n\n \n\n\n\n In ITS-T 2009, 2009. \n \n\n\n\n
\n\n\n\n \n \n \"iTETRISPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 7 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Maneros2009,\n  author = {Julen Maneros and Michele Rondinone and Ainara Gonzalez and Ramon\n\tBauza and Daniel Krajzewicz},\n  title = {iTETRIS Platform Architecture for the Integration of Cooperative\n\tTraffic and Wireless Simulations},\n  booktitle = {ITS-T 2009},\n  year = {2009},\n  abstract = {The use of cooperative wireless communications can support driving\n\tthrough dynamic exchange of Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure\n\t(V2I) messages. Traffic applications based on such systems will be\n\table to generate a safer, faster, cheaper and cleaner way for people\n\tand goods to move. In this context, the iTERIS project aims at providing\n\tthe framework to combine traffic mobility and wireless communication\n\tsimulations for large scale testing of traffic management solutions\n\tbased on cooperative systems. This paper addresses the description\n\tand explanation of the implementation choices taken to build a modular\n\tand interoperable architecture integrating heterogeneous traffic\n\tand wireless simulators, and application algorithms supporting traffic\n\tmanagement strategies. The functions of an ?in-between? control system\n\tfor managing correct simulation executions over the platform are\n\tpresented. The inter-block interaction procedures identified to ensure\n\toptimum data transfer for simulation efficiency are also introduced.},\n  journal = {Proceedings of the 9th IEEE International Conference on ITS Telecommunications},\n  keywords = {simulation platform, architecture, vehicular communications, traffic,\n\tmodularity},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/62604/}\n}\n\n
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\n The use of cooperative wireless communications can support driving through dynamic exchange of Vehicle-to-Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) messages. Traffic applications based on such systems will be able to generate a safer, faster, cheaper and cleaner way for people and goods to move. In this context, the iTERIS project aims at providing the framework to combine traffic mobility and wireless communication simulations for large scale testing of traffic management solutions based on cooperative systems. This paper addresses the description and explanation of the implementation choices taken to build a modular and interoperable architecture integrating heterogeneous traffic and wireless simulators, and application algorithms supporting traffic management strategies. The functions of an ?in-between? control system for managing correct simulation executions over the platform are presented. The inter-block interaction procedures identified to ensure optimum data transfer for simulation efficiency are also introduced.\n
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\n \n\n \n \n \n \n \n \n Investigating the Efficiency of ITS Cooperative Systems for a Better Use of Urban Transport Infrastructures: The iTETRIS Simulation Platform.\n \n \n \n \n\n\n \n Rondinone, M.; Lazaro, O.; Michelacci, C.; Krajzewicz, D.; Blokpoel, R.; Maneros, J.; Lin, L.; Hrizi, F.; Leguay, J.; and Röckl, M.\n\n\n \n\n\n\n In POLIS 2009, Dezember 2009. \n \n\n\n\n
\n\n\n\n \n \n \"InvestigatingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 6 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Rondinone2009,\n  author = {Michele Rondinone and Oscar Lazaro and Carlo Michelacci and Daniel\n\tKrajzewicz and Robbin Blokpoel and Julen Maneros and Lan Lin and\n\tFatma Hrizi and J\\'er\\'emie Leguay and Matthias R\\"ockl},\n  title = {Investigating the Efficiency of ITS Cooperative Systems for a Better\n\tUse of Urban Transport Infrastructures: The iTETRIS Simulation Platform},\n  booktitle = {POLIS 2009},\n  year = {2009},\n  month = {Dezember},\n  abstract = {The use of cooperative ITS communication systems, supporting driving\n\tthrough the dynamic exchange of Vehicle-to- Vehicle (V2V) and Vehicle-to-Infrastructure\n\t(V2I) messages, is a potential candidate to improve the economical\n\tand societal welfare. The application of such systems for novel cooperative\n\ttraffic management strategies can introduce a lot of beneficial effects\n\tnot only for road safety, but also for the economy related to transportation\n\tsystems and the environmental impact. Despite this apparent set of\n\tpromising features, City Road Authorities, which hold a key-role\n\tin determining the final adoption of such systems, still look at\n\tcooperative systems without sharing a clear opinion. This is mainly\n\tdue to the current lack of definitive and solid evidences of the\n\teffectiveness of such systems when applied in the real world. In\n\torder to fill this gap and let Road Authorities estimate the usefulness\n\tof such technologies in achieving the objectives dictated by cities?\n\ttraffic management policies, the EU consortium iTETRIS is developing\n\ta simulation platform for large scale testing of traffic management\n\tsolutions making use of cooperative ITS systems. Thanks to its own\n\tdistinguishing features, iTETRIS aims at becoming a good supporting\n\ttool for Road Authorities to implement preliminary tests on the effectiveness\n\tof ITS solutions prior to investing money for the physical deployment\n\tof the communication infrastructures allowing their functioning.},\n  journal = {Proceedings of the Polis Conference 2009 - European Cities and Regions\n\tNetworking for Innovative Transport Solutions},\n  keywords = {vehicular communication, simulation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/62610/}\n}\n\n
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\n The use of cooperative ITS communication systems, supporting driving through the dynamic exchange of Vehicle-to- Vehicle (V2V) and Vehicle-to-Infrastructure (V2I) messages, is a potential candidate to improve the economical and societal welfare. The application of such systems for novel cooperative traffic management strategies can introduce a lot of beneficial effects not only for road safety, but also for the economy related to transportation systems and the environmental impact. Despite this apparent set of promising features, City Road Authorities, which hold a key-role in determining the final adoption of such systems, still look at cooperative systems without sharing a clear opinion. This is mainly due to the current lack of definitive and solid evidences of the effectiveness of such systems when applied in the real world. In order to fill this gap and let Road Authorities estimate the usefulness of such technologies in achieving the objectives dictated by cities? traffic management policies, the EU consortium iTETRIS is developing a simulation platform for large scale testing of traffic management solutions making use of cooperative ITS systems. Thanks to its own distinguishing features, iTETRIS aims at becoming a good supporting tool for Road Authorities to implement preliminary tests on the effectiveness of ITS solutions prior to investing money for the physical deployment of the communication infrastructures allowing their functioning.\n
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\n \n\n \n \n \n \n \n \n Improving matrix estimation pertaining to detailed traffic information and sophisticated traffic state.\n \n \n \n \n\n\n \n Wang, Y.; and Friedrich, B.\n\n\n \n\n\n\n In Transportation Research Board 2009 Annual Meeting, Januar 2009. Transportation Research Board\n \n\n\n\n
\n\n\n\n \n \n \"ImprovingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 1 download\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{dlr62716,\n  author = {Yun-Pang Wang and Bernhard Friedrich},\n  title = {Improving matrix estimation pertaining to detailed traffic information\n\tand sophisticated traffic state},\n  booktitle = {Transportation Research Board 2009 Annual Meeting},\n  year = {2009},\n  month = {Januar},\n  publisher = {Transportation Research Board},\n  abstract = {Technical innovation and extensive application of adaptive signal\n\tcontrol at intersections have made turning flow information that\n\tprovide more precise constraints for Origin-Destination matrix (O-D\n\tmatrix) estimation easily available in great quantity and more accurate\n\tthan ever. However, the influence of turning flow and duplication\n\tof information on the existing matrix estimation models and on the\n\taccuracy of O-D matrix estimation has not been broadly investigated.\n\tAlso, traffic phenomenon in networks becomes complicated and difficult\n\tto explain with the increase in number of vehicles, variety of daily\n\tactivities and sophisticated travel behaviors. As such, general congested\n\ttraffic state as well as diverse travelers? perception about travel\n\ttime should be taken into consideration in O-D matrix estimation\n\tmodels. In this paper, the influence of applying finer and duplicated\n\tflow information as well as route choice proportion estimates on\n\tthe performance of the Information minimization (IM) and the modified\n\tIM models were examined. It has shown that duplicate information\n\thas adverse effect on the accuracy of matrix estimation, whereas\n\tadditional turning flow information can improve estimation accuracy.\n\tBased on the examination results a methodology using the IM model,\n\tthe stochastic user equilibrium (SUE) assignment and the information\n\tscreening process, was proposed to optimize the goodness of estimation\n\tand enhance the IM model to deal with the traffic situation more\n\trealistically. The respective convergence and required computation\n\ttime were also examined. Furthermore, an empirical route choice study\n\twas conducted in order to help determining the size of a route set\n\tused in the SUE assignment model.},\n  journal = {Compendium of TRB 88th Annual Meeting},\n  keywords = {matrix estimation, SUE, information minimization, entropy maximization},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/62716/}\n}\n\n
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\n Technical innovation and extensive application of adaptive signal control at intersections have made turning flow information that provide more precise constraints for Origin-Destination matrix (O-D matrix) estimation easily available in great quantity and more accurate than ever. However, the influence of turning flow and duplication of information on the existing matrix estimation models and on the accuracy of O-D matrix estimation has not been broadly investigated. Also, traffic phenomenon in networks becomes complicated and difficult to explain with the increase in number of vehicles, variety of daily activities and sophisticated travel behaviors. As such, general congested traffic state as well as diverse travelers? perception about travel time should be taken into consideration in O-D matrix estimation models. In this paper, the influence of applying finer and duplicated flow information as well as route choice proportion estimates on the performance of the Information minimization (IM) and the modified IM models were examined. It has shown that duplicate information has adverse effect on the accuracy of matrix estimation, whereas additional turning flow information can improve estimation accuracy. Based on the examination results a methodology using the IM model, the stochastic user equilibrium (SUE) assignment and the information screening process, was proposed to optimize the goodness of estimation and enhance the IM model to deal with the traffic situation more realistically. The respective convergence and required computation time were also examined. Furthermore, an empirical route choice study was conducted in order to help determining the size of a route set used in the SUE assignment model.\n
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\n \n\n \n \n \n \n \n Organic-Computing-Konzepte und deren Umsetzung f�r dezentrale Anwendungen im Stra�enverkehr.\n \n \n \n\n\n \n Wegener, A.\n\n\n \n\n\n\n Ph.D. Thesis, Universität zu Lübeck, 2009.\n \n\n\n\n
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@PHDTHESIS{Wegener2009,\n  author = {Axel Wegener},\n  title = {Organic-Computing-Konzepte und deren Umsetzung f�r dezentrale Anwendungen\n\tim Stra�enverkehr},\n  school = {Universit\\"at zu L\\"ubeck},\n  year = {2009},\n  file = {:http\\://d-nb.info/997885203/34:URL},\n  owner = {dkrajzew},\n  timestamp = {2012.01.23}\n}\n\n
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\n  \n 2008\n \n \n (13)\n \n \n
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\n \n\n \n \n \n \n \n Operation and Performance of Vehicular Ad-Hoc Routing Protocols in Realistic Environments.\n \n \n \n\n\n \n Bauza, R.; Gozalvez, J.; and Sepulcre, M.\n\n\n \n\n\n\n In Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th, pages 1 -5, sept. 2008. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Bauza2008,\n  author = {Bauza, R. and Gozalvez, J. and Sepulcre, M.},\n  title = {Operation and Performance of Vehicular Ad-Hoc Routing Protocols in\n\tRealistic Environments},\n  booktitle = {Vehicular Technology Conference, 2008. VTC 2008-Fall. IEEE 68th},\n  year = {2008},\n  pages = {1 -5},\n  month = {sept.},\n  doi = {10.1109/VETECF.2008.450},\n  issn = {1090-3038},\n  keywords = {information dissemination;multihop communications;vehicle-to-infrastructure\n\twireless communications;vehicle-to-vehicle communications;vehicular\n\tad-hoc routing protocols;ad hoc networks;mobile radio;routing protocols;,\n\tV2X, UMH, sumo},\n  owner = {dkrajzew},\n  timestamp = {2011.09.19}\n}\n\n
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\n \n\n \n \n \n \n \n \n Event traffic forecast for metropolitan areas based on microscopic simulation.\n \n \n \n \n\n\n \n Behrisch, M.; Bonert, M.; Brockfeld, E.; Krajzewicz, D.; and Wagner, P.\n\n\n \n\n\n\n In Third International Symposium of Transport Simulation 2008 (ISTS08), Januar 2008. \n \n\n\n\n
\n\n\n\n \n \n \"EventPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 11 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Behrisch2008,\n  author = {Michael Behrisch and Michael Bonert and Elmar Brockfeld and Daniel\n\tKrajzewicz and Peter Wagner},\n  title = {Event traffic forecast for metropolitan areas based on microscopic\n\tsimulation},\n  booktitle = {Third International Symposium of Transport Simulation 2008 (ISTS08)},\n  year = {2008},\n  month = {Januar},\n  abstract = {It is shown that a traditional travel demand forecast combined with\n\ta simulationbased approach can serve as a short-term forecast for\n\tthe traffic situation. The approach presented was developed and tested\n\tduring the Soccer World Cup 2006 in the city of Cologne as a service\n\tfor the action forces to react as fast as possible to developing\n\taberrations. This paper discusses the merits and the short-comings\n\tof the approach.},\n  file = {:http\\://elib.dlr.de/55176/1/eventtrafficSubmitted.pdf:URL},\n  keywords = {traffic simulation, event traffic, urban traffic},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/55176/}\n}\n\n
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\n It is shown that a traditional travel demand forecast combined with a simulationbased approach can serve as a short-term forecast for the traffic situation. The approach presented was developed and tested during the Soccer World Cup 2006 in the city of Cologne as a service for the action forces to react as fast as possible to developing aberrations. This paper discusses the merits and the short-comings of the approach.\n
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\n \n\n \n \n \n \n \n \n Comparison of Methods for Increasing the Performance of a DUA Computation.\n \n \n \n \n\n\n \n Behrisch, M.; Krajzewicz, D.; Wagner, P.; and Wang, Y.\n\n\n \n\n\n\n In DTA2008 International Symposium on Dynamic Traffic Assignment, Mai 2008. \n \n\n\n\n
\n\n\n\n \n \n \"ComparisonPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 5 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Behrisch2008b,\n  author = {Michael Behrisch and Daniel Krajzewicz and Peter Wagner and Yun-Pang\n\tWang},\n  title = {Comparison of Methods for Increasing the Performance of a DUA Computation},\n  booktitle = {DTA2008 International Symposium on Dynamic Traffic Assignment},\n  year = {2008},\n  month = {Mai},\n  abstract = {Computing realistic routes for a given road network and a known demand\n\tof vehicles is one of the most important steps when preparing a road\n\ttraffic simulation. The approach developed by Christian Gawron in\n\t1998 which we use for this purpose computes a dynamic user equilibrium\n\tby iteratively performing the simulation and computing new vehicle\n\troutes. The results are valid, but the computation is very time consuming\n\tdue to the need to perform both the complete simulation and rerouting\n\tof all vehicles within each iteration step. Herein, we want to discuss\n\tsome approaches to reduce the needed time and memory consumption.\n\tThe results show that this can be achieved without reducing the algorithm?s\n\tquality.},\n  journal = {Proceedings of DTA2008},\n  keywords = {microscopic simulation, traffic assignment, SUE, DUA},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/55173/}\n}\n\n
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\n Computing realistic routes for a given road network and a known demand of vehicles is one of the most important steps when preparing a road traffic simulation. The approach developed by Christian Gawron in 1998 which we use for this purpose computes a dynamic user equilibrium by iteratively performing the simulation and computing new vehicle routes. The results are valid, but the computation is very time consuming due to the need to perform both the complete simulation and rerouting of all vehicles within each iteration step. Herein, we want to discuss some approaches to reduce the needed time and memory consumption. The results show that this can be achieved without reducing the algorithm?s quality.\n
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\n \n\n \n \n \n \n \n \n Comparing performance and quality of traffic assignment techniques for microscopic road traffic simulations.\n \n \n \n \n\n\n \n Behrisch, M.; Krajzewicz, D.; and Wang, Y.\n\n\n \n\n\n\n In DTA2008 International Symposium on Dynamic Traffic Assignment, Mai 2008. \n \n\n\n\n
\n\n\n\n \n \n \"ComparingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 5 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Behrisch2008a,\n  author = {Michael Behrisch and Daniel Krajzewicz and Yun-Pang Wang},\n  title = {Comparing performance and quality of traffic assignment techniques\n\tfor microscopic road traffic simulations},\n  booktitle = {DTA2008 International Symposium on Dynamic Traffic Assignment},\n  year = {2008},\n  month = {Mai},\n  abstract = {Focusing on the tradeoff between accuracy of the assignment and computation\n\ttime this paper proposes different traffic assignment methods targeting\n\tat microscopic traffic simulation. The corresponding network-wide\n\tperformance indices, the generated route sets and the respective\n\tsignificance tests are analyzed and compared. The results indicate\n\tthat the saving on computa-tion time is significant with use of macroscopic\n\tassignments. However, the deficiency of ne-glecting turning behaviors\n\tin macroscopic assignments results in worse assignment results. Moreover,\n\tthe used computation time of some microscopic methods (e.g. the one-shot\n\tmethod) is competitive with that of the macroscopic assignments.\n\tWhile the exact parameteri-zation as well as the sensitivity of the\n\tmethods to the size of the scenarios still need further investigation,\n\tit seems favorable to employ microscopic assignment techniques or\n\thybrid methods for producing a good traffic assignment for a microscopic\n\tsimulation.},\n  journal = {Proceedings of DTA2008},\n  keywords = {microscopic simulation, traffic assignment, SUE, DUA, route set similarity},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/55172/}\n}\n\n
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\n Focusing on the tradeoff between accuracy of the assignment and computation time this paper proposes different traffic assignment methods targeting at microscopic traffic simulation. The corresponding network-wide performance indices, the generated route sets and the respective significance tests are analyzed and compared. The results indicate that the saving on computa-tion time is significant with use of macroscopic assignments. However, the deficiency of ne-glecting turning behaviors in macroscopic assignments results in worse assignment results. Moreover, the used computation time of some microscopic methods (e.g. the one-shot method) is competitive with that of the macroscopic assignments. While the exact parameteri-zation as well as the sensitivity of the methods to the size of the scenarios still need further investigation, it seems favorable to employ microscopic assignment techniques or hybrid methods for producing a good traffic assignment for a microscopic simulation.\n
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\n \n\n \n \n \n \n \n Improving Urban Traffic by Velocity Guidance.\n \n \n \n\n\n \n Chao-Qun, M.; Hai-Jun, H.; and Tie-Qiao, T.\n\n\n \n\n\n\n Intelligent Computation Technology and Automation, International Conference on, 2: 383-387. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@ARTICLE{Chao-Qun2008,\n  author = {Mei Chao-Qun and Huang Hai-Jun and Tang Tie-Qiao},\n  title = {Improving Urban Traffic by Velocity Guidance},\n  journal = {Intelligent Computation Technology and Automation, International\n\tConference on},\n  year = {2008},\n  volume = {2},\n  pages = {383-387},\n  __markedentry = {[dkrajzew:6]},\n  address = {Los Alamitos, CA, USA},\n  doi = {http://doi.ieeecomputersociety.org/10.1109/ICICTA.2008.288},\n  isbn = {978-0-7695-3357-5},\n  owner = {dkrajzew},\n  publisher = {IEEE Computer Society},\n  timestamp = {2012.01.26}\n}\n\n
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\n \n\n \n \n \n \n \n \n iTETRIS: An Integrated Wireless and Traffic Platform for Real-Time Road Traffic Management Solutions.\n \n \n \n \n\n\n \n Lazaro, O.; Robert, E.; Lan, L.; Gozalvez, J.; Turksma, S.; Filali, F.; Cartolano, F.; Urrutia, M. A.; and Krajzewicz, D.\n\n\n \n\n\n\n In 21st WWRF 2008, Oktober 2008. \n \n\n\n\n
\n\n\n\n \n \n \"iTETRIS:Paper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Lazaro2008,\n  author = {Oscar Lazaro and Eric Robert and Lin Lan and Javier Gozalvez and\n\tSiebe Turksma and Fethi Filali and Fabio Cartolano and M. A. Urrutia\n\tand Daniel Krajzewicz},\n  title = {iTETRIS: An Integrated Wireless and Traffic Platform for Real-Time\n\tRoad Traffic Management Solutions},\n  booktitle = {21st WWRF 2008},\n  year = {2008},\n  month = {Oktober},\n  abstract = {Wireless vehicular cooperative systems have been identified as an\n\tattractive solution to improve road traffic management, thereby contributing\n\tto the European goal of safer, cleaner, and more efficient and sustainable\n\ttraffic solutions. V2V-V2I communication technologies can improve\n\ttraffic management through real-time exchange of data among vehicles\n\tand with road infrastructure. It is also of great importance to investigate\n\tthe adequate combination of V2V and V2I technologies to ensure the\n\tcontinuous and costefficient operation of traffic management solutions\n\tbased on wireless vehicular cooperative solutions. However, to adequately\n\tdesign and optimize these communication protocols and analyze the\n\tpotential of wireless vehicular cooperative systems to improve road\n\ttraffic management, adequate testbeds and field operational tests\n\tneed to be conducted.\n\n\n\tDespite the potential of Field Operational Tests to get the first\n\tinsights into the benefits and problems faced in the development\n\tof wireless vehicular cooperative systems, there is yet the need\n\tto evaluate in the long term and large dimension the true potential\n\tbenefits of wireless vehicular cooperative systems to improve traffic\n\tefficiency. To this aim, iTETRIS is devoted to the development of\n\tadvanced tools coupling traffic and wireless communication simulators.},\n  keywords = {V2x communications, Simulation Platforms, Wireless Communications},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/62607/}\n}\n\n
\n
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\n Wireless vehicular cooperative systems have been identified as an attractive solution to improve road traffic management, thereby contributing to the European goal of safer, cleaner, and more efficient and sustainable traffic solutions. V2V-V2I communication technologies can improve traffic management through real-time exchange of data among vehicles and with road infrastructure. It is also of great importance to investigate the adequate combination of V2V and V2I technologies to ensure the continuous and costefficient operation of traffic management solutions based on wireless vehicular cooperative solutions. However, to adequately design and optimize these communication protocols and analyze the potential of wireless vehicular cooperative systems to improve road traffic management, adequate testbeds and field operational tests need to be conducted. Despite the potential of Field Operational Tests to get the first insights into the benefits and problems faced in the development of wireless vehicular cooperative systems, there is yet the need to evaluate in the long term and large dimension the true potential benefits of wireless vehicular cooperative systems to improve traffic efficiency. To this aim, iTETRIS is devoted to the development of advanced tools coupling traffic and wireless communication simulators.\n
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\n \n\n \n \n \n \n \n \n TRAFFIC SURVEILLANCE AND FORECAST FOR LARGE-SCALE EVENTS, Monitoring and Simulating the World Youth Day 2005 and the Soccer World Cup 2006.\n \n \n \n \n\n\n \n Niebel, W.; Bonert, M.; Brockfeld, E.; Krajzewicz, D.; and Wagner, P.\n\n\n \n\n\n\n PROM: list studenata Fakulteta prometnih znanosti, (21): 64–66. Dezember 2008.\n \n\n\n\n
\n\n\n\n \n \n \"TRAFFICPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@ARTICLE{Niebel2008,\n  author = {Wolfgang Niebel and Michael Bonert and Elmar Brockfeld and Daniel\n\tKrajzewicz and Peter Wagner},\n  title = {TRAFFIC SURVEILLANCE AND FORECAST FOR LARGE-SCALE EVENTS, Monitoring\n\tand Simulating the World Youth Day 2005 and the Soccer World Cup\n\t2006},\n  journal = {PROM: list studenata Fakulteta prometnih znanosti},\n  year = {2008},\n  pages = {64--66},\n  number = {21},\n  month = {Dezember},\n  editor = { Fakultet prometnih znanosti Zagreb},\n  keywords = {ANTAR, Traffic Finder, SUMO, SOCCER, Weltjugendtag, Gro?ereignis,\n\tVerkehrsmanagement, K?ln, Stuttgart, Berlin},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/55012/}\n}\n\n
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\n \n\n \n \n \n \n \n \n SOCCER - TRAFFIC SURVEILLANCE AND FORECAST FOR LARGE-SCALE EVENTS, Monitoring and Simulating the World Youth Day 2005 and the Soccer World Cup 2006.\n \n \n \n \n\n\n \n Niebel, W.; and Flötteröd, G.\n\n\n \n\n\n\n In University of Žilina, F. o. O.; and of Tran, E., editor(s), 6th Conference of European Students of Traffic and Transportation Sciences, Juni 2008. \n Datenträger CD-ROM\n\n\n\n
\n\n\n\n \n \n \"SOCCERPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{dlr54498,\n  author = {Wolfgang Niebel and Gunnar Fl{\\"o}tter{\\"o}d},\n  title = {SOCCER - TRAFFIC SURVEILLANCE AND FORECAST FOR LARGE-SCALE EVENTS,\n\tMonitoring and Simulating the World Youth Day 2005 and the Soccer\n\tWorld Cup 2006},\n  booktitle = {6th Conference of European Students of Traffic and Transportation\n\tSciences},\n  year = {2008},\n  editor = { University of {\\vZ}ilina, Faculty of Operation and Economics of\n\tTran},\n  month = {Juni},\n  note = {Datentr{\\"a}ger CD-ROM},\n  abstract = {It could be demonstrated, that this novel surveillance system integrating\n\tairborne traffic surveillance with traditional ground detection of\n\ttraffic flow can yield valuable information needed for a better management\n\tof big events. The combination with a simulation-based ap-proach\n\tto integrate a traditional travel demand forecast and the on-line\n\tdata generated during the event itself leads not only to an almost\n\tcomplete coverage of the traffic system, it also delivers a short-term\n\tforecast for the action forces to react fast to developing aberrations.\n\tStill the methods need to be improved, e.g., data fusion between\n\tsimulation and reality.},\n  journal = {6th Conference of European Students of Traffic and Transportation\n\tSciences},\n  keywords = {ANTAR, Traffic Finder, SUMO, SOCCER, Weltjugendtag, Gro{\\ss}ereignis,\n\tVerkehrsmanagement, K{\\"o}ln, Stuttgart, Berlin},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/54498/}\n}\n\n
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\n It could be demonstrated, that this novel surveillance system integrating airborne traffic surveillance with traditional ground detection of traffic flow can yield valuable information needed for a better management of big events. The combination with a simulation-based ap-proach to integrate a traditional travel demand forecast and the on-line data generated during the event itself leads not only to an almost complete coverage of the traffic system, it also delivers a short-term forecast for the action forces to react fast to developing aberrations. Still the methods need to be improved, e.g., data fusion between simulation and reality.\n
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\n \n\n \n \n \n \n \n TraNS: Realistic Joint Traffic and Network Simulator for VANETs.\n \n \n \n\n\n \n Piorkowski, M.; Raya, M.; Lugo, A.; Papadimitratos, P.; Grossglauser, M.; and Hubaux, J.\n\n\n \n\n\n\n ACM SIGMOBILE Mobile Computing and Communications Review, 12(1): 31–33. 2008.\n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@ARTICLE{Piorkowski2008,\n  author = {Piorkowski, Michal and Raya, Maxim and Lugo, Ada and Papadimitratos,\n\tPanos and Grossglauser, Matthias and Hubaux, Jean-Pierre},\n  title = {Tra{NS}: {R}ealistic {J}oint {T}raffic and {N}etwork {S}imulator\n\tfor {VANET}s},\n  journal = {{ACM} {SIGMOBILE} {M}obile {C}omputing and {C}ommunications {R}eview},\n  year = {2008},\n  volume = {12},\n  pages = {31--33},\n  number = {1},\n  abstract = {Realistic simulation is a necessary tool for the proper evaluation\n\tof newly developed protocols for Vehicular Ad Hoc Networks (VANETs).\n\tSeveral recent efforts focus on achieving this goal. Yet, to this\n\tdate, none of the proposed solutions fulfill all the requirements\n\tof the VANET environment. This is so mainly because road traffic\n\tand communication network simulators evolve in disjoint research\n\tcommunities. We are developing TraNS, an open-source simulation environment,\n\tas a step towards bridging this gap. This short paper describes the\n\tTraNS architecture and our ongoing development efforts.},\n  affiliation = {EPFL},\n  details = {http://infoscience.epfl.ch/record/113879},\n  documenturl = {http://infoscience.epfl.ch/record/113879/files/trans_mc2r_2007.pdf},\n  doi = {10.1145/1374512.1374522},\n  keywords = {VANET; Inter Vehicular Communication; Vehicular; applications; realistic\n\tmobility models; simulation; performance evaluation; NCCR-MICS; NCCR-MICS/CL3,\n\tV2X, EPFL Lausanne, sumo},\n  oai-id = {oai:infoscience.epfl.ch:113879},\n  oai-set = {fulltext-public},\n  owner = {dkrajzew},\n  review = {REVIEWED},\n  status = {PUBLISHED},\n  timestamp = {2011.09.19},\n  unit = {LCA}\n}\n\n
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\n Realistic simulation is a necessary tool for the proper evaluation of newly developed protocols for Vehicular Ad Hoc Networks (VANETs). Several recent efforts focus on achieving this goal. Yet, to this date, none of the proposed solutions fulfill all the requirements of the VANET environment. This is so mainly because road traffic and communication network simulators evolve in disjoint research communities. We are developing TraNS, an open-source simulation environment, as a step towards bridging this gap. This short paper describes the TraNS architecture and our ongoing development efforts.\n
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\n \n\n \n \n \n \n \n \n On the need for bidirectional coupling of road traffic microsimulation and network simulation.\n \n \n \n \n\n\n \n Sommer, C.; Yao, Z.; German, R.; and Dressler, F.\n\n\n \n\n\n\n In Proceedings of the 1st ACM SIGMOBILE workshop on Mobility models, of MobilityModels '08, pages 41–48, New York, NY, USA, 2008. ACM\n \n\n\n\n
\n\n\n\n \n \n \"OnPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Sommer:2008:NBC:1374688.1374697,\n  author = {Christoph Sommer and Zheng Yao and Reinhard German and Falko Dressler},\n  title = {On the need for bidirectional coupling of road traffic microsimulation\n\tand network simulation},\n  booktitle = {Proceedings of the 1st ACM SIGMOBILE workshop on Mobility models},\n  year = {2008},\n  series = {MobilityModels '08},\n  pages = {41--48},\n  address = {New York, NY, USA},\n  publisher = {ACM},\n  acmid = {1374697},\n  doi = {10.1145/1374688.1374697},\n  isbn = {978-1-60558-111-8},\n  keywords = {network simulation, road traffic microsimulation, vehicular ad hoc\n\tnetworks},\n  location = {Hong Kong, Hong Kong, China},\n  numpages = {8},\n  url = {http://doi.acm.org/10.1145/1374688.1374697}\n}\n\n
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\n \n\n \n \n \n \n \n \n Optimierung der Matrixschätzung durch Elimination redundanter Informationen.\n \n \n \n \n\n\n \n Wang, Y.; and Friedrich, B.\n\n\n \n\n\n\n März 2008.\n \n\n\n\n
\n\n\n\n \n \n \"OptimierungPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
\n
@MISC{dlr56995,\n  author = {Yun-Pang Wang and Bernhard Friedrich},\n  title = {Optimierung der Matrixsch{\\"a}tzung durch Elimination redundanter\n\tInformationen},\n  month = {M{\\"a}rz},\n  year = {2008},\n  abstract = {Mit den zunehmenden M{\\"o}glichkeiten der automatischen Verkehrsdatenerfassung\n\tstellt sich die Frage, welchen Einfluss die Kenntnis von Abbiegestr{\\"o}men\n\tund daraus folgende redun-dante Informationen auf die Sch{\\"a}tzung\n\tvon Herkunft-/ Zielbeziehungen haben und wie m{\\"o}g-liche negative\n\tEffekte auf die G{\\"u}te der Sch{\\"a}tzung bei bestehenden Erfassungsstellen\n\tver-mieden werden k{\\"o}nnen. Deshalb wurde in dieser Arbeit vor\n\tallem der Einfluss redundanter Informationen analysiert. Ein geeignetes\n\tEliminationsverfahren (MERI) wurde entwickelt. Es wurde nachgewiesen,\n\tdass die negative Auswirkung redundanter Informationen im Informa-tions-Minimierungs-Modell\n\t(IM-Modell) durch MERI beseitigt werden konnte und die Sch{\\"a}tz-g{\\"u}te\n\tbesser als die des Verbesserten IM-Modells (VIM-Modell) ist.},\n  booktitle = {HEUREKA 2008},\n  editor = { Forschungsgesellschaft f{\\"u}r Stra{\\ss}en- und Verkehrswesen},\n  keywords = {Matrixsch{\\"a}tzung, Matrixanpassung, redundante Information},\n  owner = {dkrajzew},\n  timestamp = {2014.01.08},\n  url = {http://elib.dlr.de/56995/}\n}\n\n
\n
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\n Mit den zunehmenden Möglichkeiten der automatischen Verkehrsdatenerfassung stellt sich die Frage, welchen Einfluss die Kenntnis von Abbiegeströmen und daraus folgende redun-dante Informationen auf die Schätzung von Herkunft-/ Zielbeziehungen haben und wie mög-liche negative Effekte auf die Güte der Schätzung bei bestehenden Erfassungsstellen ver-mieden werden können. Deshalb wurde in dieser Arbeit vor allem der Einfluss redundanter Informationen analysiert. Ein geeignetes Eliminationsverfahren (MERI) wurde entwickelt. Es wurde nachgewiesen, dass die negative Auswirkung redundanter Informationen im Informa-tions-Minimierungs-Modell (IM-Modell) durch MERI beseitigt werden konnte und die Schätz-güte besser als die des Verbesserten IM-Modells (VIM-Modell) ist.\n
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\n \n\n \n \n \n \n \n VANET Simulation Environment with Feedback Loop and its Application to Traffic Light Assistance.\n \n \n \n\n\n \n Wegener, A.; Hellbrück, H.; Wewetzer, C.; and Lübke, A.\n\n\n \n\n\n\n In GLOBECOM Workshops, 2008 IEEE, pages 1 -7, 30 2008-dec. 4 2008. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Wegener2008,\n  author = {Wegener, A. and Hellbr\\"uck, H. and Wewetzer, C. and L\\"ubke, A.},\n  title = {VANET Simulation Environment with Feedback Loop and its Application\n\tto Traffic Light Assistance},\n  booktitle = {GLOBECOM Workshops, 2008 IEEE},\n  year = {2008},\n  pages = {1 -7},\n  month = {30 2008-dec. 4},\n  abstract = {Traffic applications, in which vehicles are equipped with a radio\n\tinterface and communicate directly with each other and the road traffic\n\tinfrastructure are a promising field for ad-hoc network technology.\n\tVehicular applications reach from entertainment to traffic information\n\tsystems, including safety aspects where warning messages can inform\n\tdrivers about dangerous situations in advance. As performance tests\n\tof the real system are very expensive and not comprehensive, today's\n\tevaluations are based on analysis and simulation via traffic simulators.\n\tIn order to investigate the impact of traffic information systems\n\tthere are two options: First, traffic simulators can be extended\n\tby application code and a simplified model for wireless communication.\n\tSecond, existing network simulators can be coupled with existing\n\ttraffic simulators. We favor the coupling of existing and well known\n\tsimulators as we believe that the wireless communication characteristics\n\tinfluence the data transfer significantly and an oversimplified transmission\n\tmodel can lead to flawed results. In this paper we describe the feedback\n\tloop between traffic and network simulators named traffic control\n\tinterface (TraCI) and outline its versatility. We explain its use\n\tto determine possible energy consumption reduction when traffic lights\n\tsend their phase schedules to vehicles.},\n  doi = {10.1109/GLOCOMW.2008.ECP.67},\n  keywords = {TraCI;VANET simulation environment;ad-hoc network technology;feedback\n\tloop;oversimplified transmission model;radio interface;road traffic\n\tinfrastructure;safety aspects;traffic control interface;traffic information\n\tsystems;traffic light assistance;traffic simulators;wireless communication;ad\n\thoc networks;mobile radio;road safety;road traffic;traffic information\n\tsystems;, V2X, TU L�beck, sumo},\n  owner = {dkrajzew},\n  timestamp = {2011.09.19}\n}\n\n
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\n\n\n
\n Traffic applications, in which vehicles are equipped with a radio interface and communicate directly with each other and the road traffic infrastructure are a promising field for ad-hoc network technology. Vehicular applications reach from entertainment to traffic information systems, including safety aspects where warning messages can inform drivers about dangerous situations in advance. As performance tests of the real system are very expensive and not comprehensive, today's evaluations are based on analysis and simulation via traffic simulators. In order to investigate the impact of traffic information systems there are two options: First, traffic simulators can be extended by application code and a simplified model for wireless communication. Second, existing network simulators can be coupled with existing traffic simulators. We favor the coupling of existing and well known simulators as we believe that the wireless communication characteristics influence the data transfer significantly and an oversimplified transmission model can lead to flawed results. In this paper we describe the feedback loop between traffic and network simulators named traffic control interface (TraCI) and outline its versatility. We explain its use to determine possible energy consumption reduction when traffic lights send their phase schedules to vehicles.\n
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\n \n\n \n \n \n \n \n \n TraCI: An Interface for Coupling Road Traffic and Network Simulators.\n \n \n \n \n\n\n \n Wegener, A.; Piórkowski, M.; Raya, M.; Hellbrück, H.; Fischer, S.; and Hubaux, J.\n\n\n \n\n\n\n In 11th Communications and Networking Simulation Symposium (CNS), of CNS '08, pages 155–163, New York, NY, USA, 2008. ACM\n \n\n\n\n
\n\n\n\n \n \n \"TraCI:Paper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Wegener2008a,\n  author = {Axel Wegener and Micha\\l Pi\\'{o}rkowski and Maxim Raya and Horst\n\tHellbr\\"{u}ck and Stefan Fischer and Jean-Pierre Hubaux},\n  title = {Tra{CI}: {A}n {I}nterface for {C}oupling {R}oad {T}raffic and {N}etwork\n\t{S}imulators},\n  booktitle = {11{t}h {C}ommunications and {N}etworking {S}imulation {S}ymposium\n\t({CNS})},\n  year = {2008},\n  series = {CNS '08},\n  pages = {155--163},\n  address = {New York, NY, USA},\n  publisher = {ACM},\n  abstract = {Vehicular Ad-Hoc Networks (VANETs) enable communication among vehicles\n\tas well as between vehicles and roadside infrastructures. Currently\n\tavailable software tools for VANET research still lack the ability\n\tto asses the usability of vehicular applications. In this article,\n\twe present Traffic Control Interface (TraCI) a technique for interlinking\n\troad traffic and network simulators. It permits us to control the\n\tbehavior of vehicles during simulation runtime, and consequently\n\tto better understand the influence of VANET applications on traffic\n\tpatterns. In contrast to the existing approaches, i.e., generating\n\tmobility traces that are fed to a network simulator as static input\n\tfiles, the online coupling allows the adaptation of drivers' behavior\n\tduring simulation runtime. This technique is not limited to a special\n\ttraffic simulator or to a special network simulator. We introduce\n\ta general framework for controlling the mobility which is adaptable\n\ttowards other research areas. We describe the basic concept, design\n\tdecisions and the message format of this open-source architecture.\n\tAdditionally, we provide implementations for non-commercial traffic\n\tand network simulators namely SUMO and ns2, respectively. This coupling\n\tenables for the first time systematic evaluations of VANET applications\n\tin realistic settings.},\n  acmid = {1400740},\n  affiliation = {EPFL},\n  details = {http://infoscience.epfl.ch/record/115106},\n  doi = {10.1145/1400713.1400740},\n  isbn = {1-56555-318-7},\n  keywords = {network simulation, node mobility, vehicular ad-hoc networks (VANETs)},\n  location = {Ottawa, Canada},\n  numpages = {9},\n  url = {http://doi.acm.org/10.1145/1400713.1400740}\n}\n\n
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\n Vehicular Ad-Hoc Networks (VANETs) enable communication among vehicles as well as between vehicles and roadside infrastructures. Currently available software tools for VANET research still lack the ability to asses the usability of vehicular applications. In this article, we present Traffic Control Interface (TraCI) a technique for interlinking road traffic and network simulators. It permits us to control the behavior of vehicles during simulation runtime, and consequently to better understand the influence of VANET applications on traffic patterns. In contrast to the existing approaches, i.e., generating mobility traces that are fed to a network simulator as static input files, the online coupling allows the adaptation of drivers' behavior during simulation runtime. This technique is not limited to a special traffic simulator or to a special network simulator. We introduce a general framework for controlling the mobility which is adaptable towards other research areas. We describe the basic concept, design decisions and the message format of this open-source architecture. Additionally, we provide implementations for non-commercial traffic and network simulators namely SUMO and ns2, respectively. This coupling enables for the first time systematic evaluations of VANET applications in realistic settings.\n
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\n  \n 2007\n \n \n (6)\n \n \n
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\n \n\n \n \n \n \n \n \n Simulation und Feldtest für die Validation mobilfunkbasierter Verkehrsdaten.\n \n \n \n \n\n\n \n Höpfner, M.; Ehrenpfordt, I.; Nicolay, E.; Maier, B.; Brockfeld, E.; and Krajzewicz, D.\n\n\n \n\n\n\n In AG, D. M., editor(s), CeBIT in Motion - Forum for Telematics and Navigation, März 2007. \n \n\n\n\n
\n\n\n\n \n \n \"SimulationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Hopfner2007,\n  author = {Marcus H\\"opfner and Ingmar Ehrenpfordt and Eric Nicolay and Benjamin\n\tMaier and Elmar Brockfeld and Daniel Krajzewicz},\n  title = {Simulation und Feldtest f\\"ur die Validation mobilfunkbasierter Verkehrsdaten},\n  booktitle = {CeBIT in Motion - Forum for Telematics and Navigation},\n  year = {2007},\n  editor = { Deutsche Messe AG},\n  month = {M\\"arz},\n  abstract = {Im Rahmen des vom BMBF gef?rderten Forschungsprojektes ?TrafficOnline\n\t? Online Verkehrsdatenerfassung ?ber Mobilfunknetze? wird ein Verfahren\n\tzur Erfassung von Verkehrsdaten entwickelt, welches auf der Beobachtung\n\tvon im Stra?enverkehr mitgef?hrten Mobiltelefonen basiert. Hierbei\n\twird insbesondere der im Verkehrsnetz zur?ckgelegte Weg mobiler Telefonate,\n\twelche den Bereich mehrerer Mobilfunkzellen passieren, in anonymer\n\tArt und Weise ausgewertet und daraus eine durchschnittliche Reisegeschwindigkeit\n\termittelt. Das Institut f?r Verkehrsf?hrung und Fahrzeugsteuerung\n\that eine Testmethodik aufgebaut, auf deren Basis die ?berpr?fung\n\tder Einsatzgrenzen und Qualit?t des TrafficOnline-Verfahrens erfolgt.\n\tF?r die Validation des Verfahrens fand im Gro?raum Berlin ein Feldtest\n\tstatt. Hierf?r wurden im GSM-Netz spezielle Erfassungsrechner installiert,\n\twelche f?r einen l?ngeren Zeitraum s?mtliche an der Abis-Schnittstelle\n\tauflaufenden Mobilfunkdaten aufzeichneten. Das Testgebiet erstreckte\n\tsich dabei ?ber den s?dwestlichen Teil Berlins, ausgehend vom Zentrum\n\tbis zum Autobahnring BAB A10. Damit umfasste es neben den ?bergeordneten\n\tBundesfernstra?en auch Teile des nachgeordneten Stra?ennetzes im\n\tZentrum Berlins. Im Rahmen der Auswertung des Feldtestes erfolgt\n\tein Abgleich der mittels des TrafficOnline-Verfahrens generierten\n\tVerkehrsdaten mit lokalen Verkehrsdetektoren. Als Referenzdaten werden\n\tdabei unter anderem die Induktionsschleifen und Passivinfrarotdetektoren\n\tder Verkehrsmanagementzentrale Berlin verwendet. Neben diesem Feldtest\n\tkommt als zweiter Teil der Validation eine Simulation zum Einsatz.\n\tAls Simulationstool wurde das Programm "Simulation of Urban MObility"\n\t(SUMO) gew?hlt. Es handelt sich dabei um eine mikroskopische Verkehrssimulation,\n\twelche vom Zentrum f?r Angewandte Informatik K?ln und dem Institut\n\tf?r Verkehrsforschung Berlin entwickelt wurde. Mit diesem Simulationstool\n\twird vor allem die ?bertragbarkeit des TrafficOnline-Verfahrens auf\n\tverschiedenste r?umliche Gegebenheiten und unterschiedliche Mobilfunknetze\n\tgepr?ft wird. Um diese Pr?fung durchf?hren zu k?nnen, wurde das Tool\n\tSUMO an die speziellen Anforderungen angepasst und um notwendige\n\tFunktionalit?ten erg?nzt.},\n  journal = {CeBIT in Motion - Forum for Telematics and Navigation},\n  keywords = {Verkehrsdatenerfassung, Floating Phone Data, Verkehrssimulation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/48868/}\n}\n\n
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\n Im Rahmen des vom BMBF gef?rderten Forschungsprojektes ?TrafficOnline ? Online Verkehrsdatenerfassung ?ber Mobilfunknetze? wird ein Verfahren zur Erfassung von Verkehrsdaten entwickelt, welches auf der Beobachtung von im Stra?enverkehr mitgef?hrten Mobiltelefonen basiert. Hierbei wird insbesondere der im Verkehrsnetz zur?ckgelegte Weg mobiler Telefonate, welche den Bereich mehrerer Mobilfunkzellen passieren, in anonymer Art und Weise ausgewertet und daraus eine durchschnittliche Reisegeschwindigkeit ermittelt. Das Institut f?r Verkehrsf?hrung und Fahrzeugsteuerung hat eine Testmethodik aufgebaut, auf deren Basis die ?berpr?fung der Einsatzgrenzen und Qualit?t des TrafficOnline-Verfahrens erfolgt. F?r die Validation des Verfahrens fand im Gro?raum Berlin ein Feldtest statt. Hierf?r wurden im GSM-Netz spezielle Erfassungsrechner installiert, welche f?r einen l?ngeren Zeitraum s?mtliche an der Abis-Schnittstelle auflaufenden Mobilfunkdaten aufzeichneten. Das Testgebiet erstreckte sich dabei ?ber den s?dwestlichen Teil Berlins, ausgehend vom Zentrum bis zum Autobahnring BAB A10. Damit umfasste es neben den ?bergeordneten Bundesfernstra?en auch Teile des nachgeordneten Stra?ennetzes im Zentrum Berlins. Im Rahmen der Auswertung des Feldtestes erfolgt ein Abgleich der mittels des TrafficOnline-Verfahrens generierten Verkehrsdaten mit lokalen Verkehrsdetektoren. Als Referenzdaten werden dabei unter anderem die Induktionsschleifen und Passivinfrarotdetektoren der Verkehrsmanagementzentrale Berlin verwendet. Neben diesem Feldtest kommt als zweiter Teil der Validation eine Simulation zum Einsatz. Als Simulationstool wurde das Programm \"Simulation of Urban MObility\" (SUMO) gew?hlt. Es handelt sich dabei um eine mikroskopische Verkehrssimulation, welche vom Zentrum f?r Angewandte Informatik K?ln und dem Institut f?r Verkehrsforschung Berlin entwickelt wurde. Mit diesem Simulationstool wird vor allem die ?bertragbarkeit des TrafficOnline-Verfahrens auf verschiedenste r?umliche Gegebenheiten und unterschiedliche Mobilfunknetze gepr?ft wird. Um diese Pr?fung durchf?hren zu k?nnen, wurde das Tool SUMO an die speziellen Anforderungen angepasst und um notwendige Funktionalit?ten erg?nzt.\n
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\n \n\n \n \n \n \n \n Rapid Generation of Realistic Mobility Models for VANET.\n \n \n \n\n\n \n Karnadi, F.; Mo, Z. H.; and Lan, K.\n\n\n \n\n\n\n In Wireless Communications and Networking Conference, 2007.WCNC 2007. IEEE, pages 2506 -2511, march 2007. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Karnadi2007,\n  author = {Karnadi, F.K. and Zhi Hai Mo and Kun-chan Lan},\n  title = {Rapid Generation of Realistic Mobility Models for VANET},\n  booktitle = {Wireless Communications and Networking Conference, 2007.WCNC 2007.\n\tIEEE},\n  year = {2007},\n  pages = {2506 -2511},\n  month = {march},\n  abstract = {One emerging, new type of ad-hoc network is the vehicular ad-hoc network\n\t(VANET), in which vehicles constitute the mobile nodes in the network.\n\tDue to the prohibitive cost of deploying and implementing such a\n\tsystem in real world, most research in VANET relies on simulations\n\tfor evaluation. A key component for VANET simulations is a realistic\n\tvehicular mobility model that ensures conclusions drawn from simulation\n\texperiments will carry through to real deployments. In this work,\n\twe introduce a tool MOVE that allows users to rapidly generate realistic\n\tmobility models for VANET simulations. MOVE is built on top of an\n\topen source micro-traffic simulator SUMO. The output of MOVE is a\n\trealistic mobility model and can be immediately used by popular network\n\tsimulators such as ns-2 and qualnet. We evaluate and compare ad-hoc\n\trouting performance for vehicular nodes using MOVE to that using\n\tthe random waypoint model. We show that the simulation results obtained\n\twhen nodes moving according to a realistic mobility model is significantly\n\tdifferent from that of the commonly used random waypoint model.},\n  doi = {10.1109/WCNC.2007.467},\n  issn = {1525-3511},\n  keywords = {MOVE tool;SUMO;VANET simulations;ad-hoc routing performance;mobile\n\tnodes;network simulators;open source microtraffic simulator;random\n\twaypoint model;realistic vehicular mobility model;vehicular ad-hoc\n\tnetwork;vehicular nodes;ad hoc networks;public domain software;telecommunication\n\tnetwork routing;traffic engineering computing;, V2X, New South Wales\n\tUniversity},\n  owner = {dkrajzew},\n  timestamp = {2011.09.19}\n}\n\n
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\n One emerging, new type of ad-hoc network is the vehicular ad-hoc network (VANET), in which vehicles constitute the mobile nodes in the network. Due to the prohibitive cost of deploying and implementing such a system in real world, most research in VANET relies on simulations for evaluation. A key component for VANET simulations is a realistic vehicular mobility model that ensures conclusions drawn from simulation experiments will carry through to real deployments. In this work, we introduce a tool MOVE that allows users to rapidly generate realistic mobility models for VANET simulations. MOVE is built on top of an open source micro-traffic simulator SUMO. The output of MOVE is a realistic mobility model and can be immediately used by popular network simulators such as ns-2 and qualnet. We evaluate and compare ad-hoc routing performance for vehicular nodes using MOVE to that using the random waypoint model. We show that the simulation results obtained when nodes moving according to a realistic mobility model is significantly different from that of the commonly used random waypoint model.\n
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\n \n\n \n \n \n \n \n \n Untersuchungen der Performanz einer auf C2C-Kommunikation basierenden, autonomen Routenwahl bei Stauszenarien.\n \n \n \n \n\n\n \n Krajzewicz, D.; Boyom, D. T.; and Wagner, P.\n\n\n \n\n\n\n In Heureka '08, Juli 2007. \n \n\n\n\n
\n\n\n\n \n \n \"UntersuchungenPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2007,\n  author = {Daniel Krajzewicz and Danilot Teta Boyom and Peter Wagner},\n  title = {Untersuchungen der Performanz einer auf C2C-Kommunikation basierenden,\n\tautonomen Routenwahl bei Stauszenarien},\n  booktitle = {Heureka '08},\n  year = {2007},\n  month = {Juli},\n  abstract = {Neben m?glichem Einsatz bei der Warnung und Unterst?tzung des Fahrers,\n\tder Vorbereitung des Fahrzeugs auf einen kurz bevorstehenden Unfall\n\toder der Realisierung eines Zugangs zum Internet innerhalb von Fahrzeugen\n\t([6]) wird der Kommunikation zwischen Fahrzeugen auch die M?glichkeit\n\tStaus zu reduzieren zugesprochen. F?r diese Funktion sollen die von\n\tanderen Fahrzeugen erhaltenen Informationen ?ber den Zustand im Stra?ennetz\n\tin angepasste Navigationssysteme einflie?en, so dass diese in der\n\tLage sind, auf realem und aktuellem Stra?enzustand basierend, Routen\n\tf?r das jeweilige, sie tragende Fahrzeug vorherzusagen. Die hier\n\tvorgestellte Untersuchung soll aufzeigen, inwiefern eine solche zwischen\n\tden Fahrzeugen innerhalb des Systems unkoordinierte Routenwahl tats?chlich\n\tin der Lage ist, die Auswirkungen von Staus zu reduzieren.\n\n\n\tF?r die Untersuchung wurde die freie Verkehrsflusssimulation SUMO\n\t([1, 2]) um eine C2C-Komponente erweitert. Als Datengrundlage wurde\n\tein Stra?ennetz der Stadt Magdeburg benutzt, f?r das eine validierte\n\tNachfrage existiert. Dieses Dokument beschreibt die Erweiterung der\n\tSimulation um die C2C-Kommunikation, den Aufbau des simulierten Stauszenarios\n\tsowie die Ergebnisse der Untersuchung.},\n  keywords = {car2car-Kommunikation, Verkehrsmanagement, Simulation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/50466/}\n}\n\n
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\n Neben m?glichem Einsatz bei der Warnung und Unterst?tzung des Fahrers, der Vorbereitung des Fahrzeugs auf einen kurz bevorstehenden Unfall oder der Realisierung eines Zugangs zum Internet innerhalb von Fahrzeugen ([6]) wird der Kommunikation zwischen Fahrzeugen auch die M?glichkeit Staus zu reduzieren zugesprochen. F?r diese Funktion sollen die von anderen Fahrzeugen erhaltenen Informationen ?ber den Zustand im Stra?ennetz in angepasste Navigationssysteme einflie?en, so dass diese in der Lage sind, auf realem und aktuellem Stra?enzustand basierend, Routen f?r das jeweilige, sie tragende Fahrzeug vorherzusagen. Die hier vorgestellte Untersuchung soll aufzeigen, inwiefern eine solche zwischen den Fahrzeugen innerhalb des Systems unkoordinierte Routenwahl tats?chlich in der Lage ist, die Auswirkungen von Staus zu reduzieren. F?r die Untersuchung wurde die freie Verkehrsflusssimulation SUMO ([1, 2]) um eine C2C-Komponente erweitert. Als Datengrundlage wurde ein Stra?ennetz der Stadt Magdeburg benutzt, f?r das eine validierte Nachfrage existiert. Dieses Dokument beschreibt die Erweiterung der Simulation um die C2C-Kommunikation, den Aufbau des simulierten Stauszenarios sowie die Ergebnisse der Untersuchung.\n
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\n \n\n \n \n \n \n \n \n Evaluation of the Performance of city-wide, autonomous Route Choice based on Vehicle-to-vehicle-Communictaion .\n \n \n \n \n\n\n \n Krajzewicz, D.; Boyom, D. T.; and Wagner, P.\n\n\n \n\n\n\n In TRB 2008 (87. Annual Meeting), Juli 2007. \n \n\n\n\n
\n\n\n\n \n \n \"EvaluationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2007a,\n  author = {Daniel Krajzewicz and Danilot Teta Boyom and Peter Wagner},\n  title = {Evaluation of the Performance of city-wide, autonomous Route Choice\n\tbased on Vehicle-to-vehicle-Communictaion\n\n\t},\n  booktitle = {TRB 2008 (87. Annual Meeting)},\n  year = {2007},\n  month = {Juli},\n  abstract = {The sharing of information between vehicles via vehicle-to-vehicle\n\tcommunication has a great potential for future traffic surveillance\n\tand management applications. One possible use case is the communication\n\tof information about the state of the road network, for example by\n\ttransferring travel times into the navigation devices enabling them\n\tto compute routes using this knowledge.\n\n\n\tThis work reports about a set of simulation results where the benefit\n\tof using information exchanged between vehicles was evaluated for\n\ta city scenario using an extended microscopic traffic flow simulation.\n\tThe scenario is based on validated real-life data for a normal weekday\n\twithin a middle-sized German city. Contrary to other approaches,\n\tthe used model of vehicle-to-vehicle communication was implemented\n\tdirectly into the traffic simulation. It was kept as simple as possible\n\tin order to allow a fast execution needed for evaluating the effects\n\ton a large scale and was calibrated using data from the real life.\n\tThis simulation study evaluates the influences of the model?s parameters\n\tand of the amount of vehicles equipped with vehicle-to-vehicle devices\n\ton the mean travel time within the simulated city.},\n  keywords = {Vehicle-to-vehicle communication, traffic management, simulation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/50464/}\n}\n\n
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\n The sharing of information between vehicles via vehicle-to-vehicle communication has a great potential for future traffic surveillance and management applications. One possible use case is the communication of information about the state of the road network, for example by transferring travel times into the navigation devices enabling them to compute routes using this knowledge. This work reports about a set of simulation results where the benefit of using information exchanged between vehicles was evaluated for a city scenario using an extended microscopic traffic flow simulation. The scenario is based on validated real-life data for a normal weekday within a middle-sized German city. Contrary to other approaches, the used model of vehicle-to-vehicle communication was implemented directly into the traffic simulation. It was kept as simple as possible in order to allow a fast execution needed for evaluating the effects on a large scale and was calibrated using data from the real life. This simulation study evaluates the influences of the model?s parameters and of the amount of vehicles equipped with vehicle-to-vehicle devices on the mean travel time within the simulated city.\n
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\n \n\n \n \n \n \n \n \n Auswirkungen einer auf Car2Car-Kommunikation basierenden, dynamischen Routenwahl bei Beeinträchtigungen im Stadtverkehr.\n \n \n \n \n\n\n \n Krajzewicz, D.; Boyom, D. T.; and Wagner, P.\n\n\n \n\n\n\n In 21. Verkehrswissenschaftliche Tage, Juli 2007. \n \n\n\n\n
\n\n\n\n \n \n \"AuswirkungenPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2007b,\n  author = {Daniel Krajzewicz and Danilot Teta Boyom and Peter Wagner},\n  title = {Auswirkungen einer auf Car2Car-Kommunikation basierenden, dynamischen\n\tRoutenwahl bei Beeintr\\"achtigungen im Stadtverkehr},\n  booktitle = {21. Verkehrswissenschaftliche Tage},\n  year = {2007},\n  month = {Juli},\n  abstract = {Die Kommunikation zwischen Fahrzeugen, die in K?rze im Rahmen des\n\tProjektes SIM-TD praxisnah demonstriert werden soll, birgt ein gro?es\n\tPotential f?r eine zuk?nftige Verkehrslageerfassung wie auch f?r\n\tneue Verfahren beim Management von Verkehrssystemen. Beispielsweise\n\tk?nnen Fahrzeuge Informationen ?ber von einem Normalfall abweichende\n\tReisezeiten an andere Fahrzeuge weiter geben, die ihrem Fahrer dann\n\teine neue, am Stau vorbei f?hrende, Route vorschlagen.\n\n\n\tIm Rahmen der hier vorgestellten Untersuchung wurde ein solches Szenario\n\tper Simulation evaluiert, um die Effizienz einer solchen Routenwahl\n\tzu demonstrieren. Ausgegangen wurde hierbei von der Simulation einer\n\tganzen Stadt, die um Staus erweitert worden ist. Neben den Auswirkungen\n\tunterschiedlicher Ausstattungsgrade wurden auch die Einfl?sse weiterer\n\tKommunikationsparameter untersucht.},\n  journal = {21. Verkehrswissenschaftliche Tage},\n  keywords = {Car2Car-Kommunikation, Verkehrsflusssimulation, Verkehrsmanagement},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/50463/}\n}\n\n
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\n Die Kommunikation zwischen Fahrzeugen, die in K?rze im Rahmen des Projektes SIM-TD praxisnah demonstriert werden soll, birgt ein gro?es Potential f?r eine zuk?nftige Verkehrslageerfassung wie auch f?r neue Verfahren beim Management von Verkehrssystemen. Beispielsweise k?nnen Fahrzeuge Informationen ?ber von einem Normalfall abweichende Reisezeiten an andere Fahrzeuge weiter geben, die ihrem Fahrer dann eine neue, am Stau vorbei f?hrende, Route vorschlagen. Im Rahmen der hier vorgestellten Untersuchung wurde ein solches Szenario per Simulation evaluiert, um die Effizienz einer solchen Routenwahl zu demonstrieren. Ausgegangen wurde hierbei von der Simulation einer ganzen Stadt, die um Staus erweitert worden ist. Neben den Auswirkungen unterschiedlicher Ausstattungsgrade wurden auch die Einfl?sse weiterer Kommunikationsparameter untersucht.\n
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\n \n\n \n \n \n \n \n iTranSIM - Simulation-based Vehicle Location.\n \n \n \n\n\n \n Morenz, T.\n\n\n \n\n\n\n Master's thesis, University of Dublin, 2007.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@MASTERSTHESIS{Morenz2007,\n  author = {Tino Morenz},\n  title = {iTranSIM - Simulation-based Vehicle Location},\n  school = {University of Dublin},\n  year = {2007},\n  keywords = {University of Dublin, sumo},\n  owner = {dkrajzew},\n  timestamp = {2011.09.19}\n}\n\n
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\n  \n 2006\n \n \n (6)\n \n \n
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\n \n\n \n \n \n \n \n \n SOCCER Verkehrslageerfassung und ?prognose während der Fußball-WM.\n \n \n \n \n\n\n \n Bonert, M.; Brockfeld, E.; Ernst, I.; Krajzewicz, D.; Ruhé, M.; and Wagner, P.\n\n\n \n\n\n\n In IMA 2006 Informationssysteme für mobile Anwendungen, Oktober 2006. \n \n\n\n\n
\n\n\n\n \n \n \"SOCCERPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 4 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Bonert2006,\n  author = {Michael Bonert and Elmar Brockfeld and Ines Ernst and Daniel Krajzewicz\n\tand Martin Ruh\\'e and Peter Wagner},\n  title = {SOCCER Verkehrslageerfassung und ?prognose w\\"ahrend der Fu\\ssball-WM},\n  booktitle = {IMA 2006 Informationssysteme f\\"ur mobile Anwendungen},\n  year = {2006},\n  month = {Oktober},\n  abstract = {W?hrend der FIFA?Fu?ballweltmeisterschaft 2006 wurde im Rahmen des\n\tvom BMWi ge-f?rderten Projektes SOCCER an drei Spielst?tten (Berlin,\n\tK?ln, Stuttgart) ein integriertes Sys-tem getestet, das Verkehrsdaten\n\taus unterschiedlichen Quellen zu einer Verkehrslageerfas-sung und\n\tanschlie?ender Prognose fusionieren konnte. Die beiden Systeme in\n\tBerlin und K?ln setzten dabei jeweils auf eine Simulation der gesamten\n\tStadt auf, w?hrend das Stuttgar-ter System im Wesentlichen auf einer\n\tganglinienbasierten Prognose basierte. Die verwendeten Inputdaten\n\twaren in allen F?llen eine Kombination aus (nicht in allen St?dten\n\tgleich) luft-gest?tzter Verkehrslageerfassung an ausgesuchten Brennpunkten\n\t(Zeppelin in K?ln, Flugzeug in Berlin und Hubschrauber in Stuttgart),\n\tvorhandenen Z?hlschleifendaten (alle Orte) und den Reisezeitinformationen\n\taus den Taxi?FCD Projekten Stuttgart und Berlin des DLR (siehe www.cityrouter.com).\n\tDieser Beitrag beschreibt den Aufbau der Systeme und stellt erste\n\tEr-gebnisse dar, mit denen die Prognoseg?te beurteilt werden kann.},\n  keywords = {Verkehrsmanagement von Gro?ereignissen, Verkehrssimulation, luftgest?tzte\n\tVerkehrslageerfassung},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/50197/}\n}\n\n
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\n W?hrend der FIFA?Fu?ballweltmeisterschaft 2006 wurde im Rahmen des vom BMWi ge-f?rderten Projektes SOCCER an drei Spielst?tten (Berlin, K?ln, Stuttgart) ein integriertes Sys-tem getestet, das Verkehrsdaten aus unterschiedlichen Quellen zu einer Verkehrslageerfas-sung und anschlie?ender Prognose fusionieren konnte. Die beiden Systeme in Berlin und K?ln setzten dabei jeweils auf eine Simulation der gesamten Stadt auf, w?hrend das Stuttgar-ter System im Wesentlichen auf einer ganglinienbasierten Prognose basierte. Die verwendeten Inputdaten waren in allen F?llen eine Kombination aus (nicht in allen St?dten gleich) luft-gest?tzter Verkehrslageerfassung an ausgesuchten Brennpunkten (Zeppelin in K?ln, Flugzeug in Berlin und Hubschrauber in Stuttgart), vorhandenen Z?hlschleifendaten (alle Orte) und den Reisezeitinformationen aus den Taxi?FCD Projekten Stuttgart und Berlin des DLR (siehe www.cityrouter.com). Dieser Beitrag beschreibt den Aufbau der Systeme und stellt erste Er-gebnisse dar, mit denen die Prognoseg?te beurteilt werden kann.\n
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\n \n\n \n \n \n \n \n \n NEW GLOBAL NAVIGATION SATELLITE SYSTEM BASED APPROACHES FOR ADVANCED DRIVER ASSISTANCE.\n \n \n \n \n\n\n \n Kühne, R.; Schlingelhof, M.; and Krajzewicz, D.\n\n\n \n\n\n\n Januar 2006.\n Probably duplicate\n\n\n\n
\n\n\n\n \n \n \"NEWPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@UNPUBLISHED{Kuhne2006,\n  author = {Reinhart K\\"uhne and Marius Schlingelhof and Daniel Krajzewicz},\n  title = {NEW GLOBAL NAVIGATION SATELLITE SYSTEM BASED APPROACHES FOR ADVANCED\n\tDRIVER ASSISTANCE},\n  note = {Probably duplicate},\n  month = {Januar},\n  year = {2006},\n  booktitle = {TRB 2006 (85. Annual Meeting)},\n  keywords = {Navigation, Satellite System, Driver Assistance},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/44423/}\n}\n\n
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\n \n\n \n \n \n \n \n \n The Open Source Traffic Simulation Package SUMO.\n \n \n \n \n\n\n \n Krajzewicz, D.; Bonert, M.; and Wagner, P.\n\n\n \n\n\n\n In RoboCup 2006, Juni 2006. \n \n\n\n\n
\n\n\n\n \n \n \"ThePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2006,\n  author = {Daniel Krajzewicz and Michael Bonert and Peter Wagner},\n  title = {The Open Source Traffic Simulation Package SUMO},\n  booktitle = {RoboCup 2006},\n  year = {2006},\n  month = {Juni},\n  abstract = {Since the year 2000, the Institute of Transportation Research (IVF)\n\tat the German Aerospace Centre (DLR) is developing a microscopic,\n\ttraffic simulation package. The complete package is offered as open\n\tsource to establish the software as a common testbed for algorithms\n\tand models from traffic research. Since the year 2003 the IVF also\n\tworks on a virtual traffic management centre and in conjunction with\n\tthis on traffic management. Several large-scale projects have been\n\tdone since this time, most importantly INVENT where modern traffic\n\tmanagement methods have been evaluated and the online-simulation\n\tand prediction of traffic during the world youth day (Weltjugendtag)\n\t2005 in Cologne/Germany. This publication briefly describes the simulation\n\tpackage together with the projects mentioned above to show how SUMO\n\tcan be used to simulate largescale traffic scenarios. Additionally,\n\tit is pointed out how SUMO may be used as a testbed for automatic\n\tmanagement algorithms with minor effort in developing extensions.},\n  journal = {RoboCup 2006},\n  keywords = {Simulation, Traffic Management, Disaster & Event Management},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/46740/}\n}\n\n
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\n Since the year 2000, the Institute of Transportation Research (IVF) at the German Aerospace Centre (DLR) is developing a microscopic, traffic simulation package. The complete package is offered as open source to establish the software as a common testbed for algorithms and models from traffic research. Since the year 2003 the IVF also works on a virtual traffic management centre and in conjunction with this on traffic management. Several large-scale projects have been done since this time, most importantly INVENT where modern traffic management methods have been evaluated and the online-simulation and prediction of traffic during the world youth day (Weltjugendtag) 2005 in Cologne/Germany. This publication briefly describes the simulation package together with the projects mentioned above to show how SUMO can be used to simulate largescale traffic scenarios. Additionally, it is pointed out how SUMO may be used as a testbed for automatic management algorithms with minor effort in developing extensions.\n
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\n \n\n \n \n \n \n \n Predicting Traffic lights to Improve Urban Traffic Fuel Consumption.\n \n \n \n\n\n \n Sanchez, M.; Cano, J.; and Kim, D.\n\n\n \n\n\n\n In ITS Telecommunications Proceedings, 2006 6th International Conference on, pages 331 -336, june 2006. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Sanchez2006,\n  author = {Miguel Sanchez and Juan-Carlos Cano and Dongkyun Kim},\n  title = {Predicting Traffic lights to Improve Urban Traffic Fuel Consumption},\n  booktitle = {ITS Telecommunications Proceedings, 2006 6th International Conference\n\ton},\n  year = {2006},\n  pages = {331 -336},\n  month = {june },\n  __markedentry = {[dkrajzew:6]},\n  abstract = {Modern traffic control systems include smart feedback into the traffic\n\tlight control system. New ways of improving our transit systems fuel\n\tefficiency are now more than welcome due to global warming and oil\n\thigh price. This paper presents a new approach on how drivers and\n\ttraffic lights can interact to save fuel. Our preliminary results\n\tshow that 25% savings are within range in urban circuits},\n  doi = {10.1109/ITST.2006.288906},\n  keywords = {global warming;light control system;traffic control system;urban traffic\n\tfuel consumption;road traffic;traffic control;},\n  owner = {dkrajzew},\n  timestamp = {2012.01.26}\n}\n\n
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\n Modern traffic control systems include smart feedback into the traffic light control system. New ways of improving our transit systems fuel efficiency are now more than welcome due to global warming and oil high price. This paper presents a new approach on how drivers and traffic lights can interact to save fuel. Our preliminary results show that 25% savings are within range in urban circuits\n
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\n \n\n \n \n \n \n \n \n NEW GNSS-BASED APPROACHES FOR ADVANCED DRIVER ASSISTANCE SYSTEMS.\n \n \n \n \n\n\n \n Schlingelhof, M.; Kühne, R.; and Krajzewicz, D.\n\n\n \n\n\n\n In TRB 2006 (85th Annual Meeting), Januar 2006. \n \n\n\n\n
\n\n\n\n \n \n \"NEWPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Schlingelhof2006,\n  author = {Marius Schlingelhof and Reinhart K\\"uhne and Daniel Krajzewicz},\n  title = {NEW GNSS-BASED APPROACHES FOR ADVANCED DRIVER ASSISTANCE SYSTEMS},\n  booktitle = {TRB 2006 (85th Annual Meeting)},\n  year = {2006},\n  month = {Januar},\n  abstract = {The enhancement of road safety and traffic efficiency are the focus\n\tof many endeavours in science, economy and politics. A traditional\n\tapproach is to increase vehicle safety by advanced and intelligent\n\tonboard systems using high developed sensors for the monitoring of\n\tthe vehicle?s surrounding. However, these technologies are vehicle-autonomous\n\tsolutions that only consider information coming from onboard sensors.\n\tThese sensors are normally based on optical, ultra-sonic, radar or\n\tvideo camera systems and can only detect other vehicles or other\n\tobjects along a line-of-sight up to the next obstacle. The view beyond\n\ta truck cruising just in front of the vehicle, for example, is not\n\tpossible.\n\n\n\tNew approaches are now dealing with co-operative technologies that\n\tenable the exchange of important information between vehicles and\n\tinfrastructures for updated traffic data acquisition, recognition\n\tof traffic congestion due to accidents or other sudden incidents,\n\tlocal dynamic map data updates and driver warning. One key technology\n\twithin such co-operative systems is the highly precise relative positioning\n\tbetween vehicles and the monitoring of the broader vehicle environment\n\tusing ad-hoc data networks. These technologies can be primarily based\n\ton satellite systems like GPS or GALILEO supplemented by other onboard\n\tsensor data, whereby unprocessed sensor data and satellite pseudo\n\trange information will be exchanged between the vehicles within a\n\tdedicated radio range. These data, when compared with the onboard\n\tdata, will finally enable the creation of virtual images of a vehicle?s\n\tsurrounding using special microscopic traffic modelling algorithms.\n\tFuture applications are road safety and Advanced Driver Assistance\n\tSystems (ADAS).},\n  keywords = {GPS, Galileo, GNSS, ADAS, Road Safety, Relative Positioning, Surrounding\n\tMonitoring},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/21758/}\n}\n\n
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\n The enhancement of road safety and traffic efficiency are the focus of many endeavours in science, economy and politics. A traditional approach is to increase vehicle safety by advanced and intelligent onboard systems using high developed sensors for the monitoring of the vehicle?s surrounding. However, these technologies are vehicle-autonomous solutions that only consider information coming from onboard sensors. These sensors are normally based on optical, ultra-sonic, radar or video camera systems and can only detect other vehicles or other objects along a line-of-sight up to the next obstacle. The view beyond a truck cruising just in front of the vehicle, for example, is not possible. New approaches are now dealing with co-operative technologies that enable the exchange of important information between vehicles and infrastructures for updated traffic data acquisition, recognition of traffic congestion due to accidents or other sudden incidents, local dynamic map data updates and driver warning. One key technology within such co-operative systems is the highly precise relative positioning between vehicles and the monitoring of the broader vehicle environment using ad-hoc data networks. These technologies can be primarily based on satellite systems like GPS or GALILEO supplemented by other onboard sensor data, whereby unprocessed sensor data and satellite pseudo range information will be exchanged between the vehicles within a dedicated radio range. These data, when compared with the onboard data, will finally enable the creation of virtual images of a vehicle?s surrounding using special microscopic traffic modelling algorithms. Future applications are road safety and Advanced Driver Assistance Systems (ADAS).\n
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\n \n\n \n \n \n \n \n \n Mikroskopische Modellierung der Personenverkehrsnachfrage auf Basis von Zeitverwendungstagebüchern.\n \n \n \n \n\n\n \n Varschen, C.; and Wagner, P.\n\n\n \n\n\n\n In Beckmann, K. J., editor(s), AMUS 2006 (7. Aachener Kolloqium \"Mobilität und Stadt\"), volume 81, of Stadt Region Land, pages 63–69, 2006. Institut für Stadtbauwesen und Stadtverkehr, RWTH Aachen\n \n\n\n\n
\n\n\n\n \n \n \"MikroskopischePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Varschen2006,\n  author = {Christian Varschen and Peter Wagner},\n  title = {Mikroskopische Modellierung der Personenverkehrsnachfrage auf Basis\n\tvon Zeitverwendungstageb\\"uchern},\n  booktitle = {AMUS 2006 (7. Aachener Kolloqium "Mobilit\\"at und Stadt")},\n  year = {2006},\n  editor = {Klaus J. Beckmann},\n  volume = {81},\n  series = {Stadt Region Land},\n  pages = {63--69},\n  publisher = {Institut f\\"ur Stadtbauwesen und Stadtverkehr, RWTH Aachen},\n  abstract = {Die wachsende Verkehrsleistung und die hieraus resultierenden Verkehrsprobleme\n\tf?hren verst?rkt zu der Frage, mit welchen Konzepten der zuk?nftige\n\tVerkehrsbedarf erf?llt werden kann. Wichtige Werkzeuge im Rahmen\n\tvon Verkehrsplanung und Verkehrsmanagement sind Verkehrsmodelle,\n\tmit denen Prognosen des zu erwartenden Verkehrsaufkommens erstellt\n\twerden k?nnen und die damit Ansatzpunkte f?r seine verbesserte Lenkung\n\tliefern. Im Rahmen mehrerer Projekte wird das am DLR-IVF entwickelte\n\tagentenbasierte Personennachfragemodell TAPAS (Travel and Activity\n\tPAtterns Simulation) genutzt. In diesem Modell wird ein aktivit?ten-basierter\n\tAnsatz verwendet, welcher auf der Analyse von Zeitverwendungsdaten\n\tberuht. Daher sind die zur Verf?gung stehenden Aktivit?tenmuster\n\tauf die in den Zeitverwendungsdaten enthaltenen beschr?nkt, was f?r\n\tPrognosen eine starke Einschr?nkung darstellt. Die hier beschriebene\n\tErweiterung des Modells erm?glicht das Einf?gen neuer Aktivit?tenkategorien;\n\tTAPAS beschreibt jede Aktivit?t durch vier Parameter, die sich alle\n\taus Erhebungen sch?tzen lassen: Anteil und Umfang der Nutzung der\n\t(f?r TAPAS neuen) Aktivit?t sowie die zeitliche Variabilit?t der\n\tAktivit?t hinsichtlich Anfangszeitpunkt und Dauer. Die ersten beiden\n\tParameter werden direkt aus den empirischen Daten gewonnen, w?hrend\n\tdie letzten beiden sich aus der statistischen Variation der Erhebungen\n\tergeben. Die Weiterentwicklung des Modells pr?zisiert die Absch?tzung\n\tder Personenverkehrsnachfrage unter besonderer Ber?cksichtigung spezifischer\n\twissenschaftlicher und politischer Fragestellungen. Die enge Verkn?pfung\n\tmit empirischen Daten erh?ht zudem eine hohe Zuverl?ssigkeit von\n\tPrognosen.},\n  journal = {Integrierte Mikro-Simulation von Raum- und Verkehrsentwicklung. Theorie,\n\tKonzepte, Modelle, Praxis},\n  keywords = {Personenverkehrsnachfrage, Modellierung, aktivit?ten-basiert, Zeitbudget,\n\tTAPAS},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/45058/}\n}\n\n
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\n Die wachsende Verkehrsleistung und die hieraus resultierenden Verkehrsprobleme f?hren verst?rkt zu der Frage, mit welchen Konzepten der zuk?nftige Verkehrsbedarf erf?llt werden kann. Wichtige Werkzeuge im Rahmen von Verkehrsplanung und Verkehrsmanagement sind Verkehrsmodelle, mit denen Prognosen des zu erwartenden Verkehrsaufkommens erstellt werden k?nnen und die damit Ansatzpunkte f?r seine verbesserte Lenkung liefern. Im Rahmen mehrerer Projekte wird das am DLR-IVF entwickelte agentenbasierte Personennachfragemodell TAPAS (Travel and Activity PAtterns Simulation) genutzt. In diesem Modell wird ein aktivit?ten-basierter Ansatz verwendet, welcher auf der Analyse von Zeitverwendungsdaten beruht. Daher sind die zur Verf?gung stehenden Aktivit?tenmuster auf die in den Zeitverwendungsdaten enthaltenen beschr?nkt, was f?r Prognosen eine starke Einschr?nkung darstellt. Die hier beschriebene Erweiterung des Modells erm?glicht das Einf?gen neuer Aktivit?tenkategorien; TAPAS beschreibt jede Aktivit?t durch vier Parameter, die sich alle aus Erhebungen sch?tzen lassen: Anteil und Umfang der Nutzung der (f?r TAPAS neuen) Aktivit?t sowie die zeitliche Variabilit?t der Aktivit?t hinsichtlich Anfangszeitpunkt und Dauer. Die ersten beiden Parameter werden direkt aus den empirischen Daten gewonnen, w?hrend die letzten beiden sich aus der statistischen Variation der Erhebungen ergeben. Die Weiterentwicklung des Modells pr?zisiert die Absch?tzung der Personenverkehrsnachfrage unter besonderer Ber?cksichtigung spezifischer wissenschaftlicher und politischer Fragestellungen. Die enge Verkn?pfung mit empirischen Daten erh?ht zudem eine hohe Zuverl?ssigkeit von Prognosen.\n
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\n  \n 2005\n \n \n (6)\n \n \n
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\n \n\n \n \n \n \n \n \n Calibration and Validation of Microscopic Traffic Flow Models.\n \n \n \n \n\n\n \n Brockfeld, E.; Kühne, R.; and Wagner, P.\n\n\n \n\n\n\n Transportation Research Records, 1934: 179–187. Januar 2005.\n \n\n\n\n
\n\n\n\n \n \n \"CalibrationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 1 download\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@ARTICLE{Brockfeld2005a,\n  author = {Elmar Brockfeld and Reinhart K\\"uhne and Peter Wagner},\n  title = {Calibration and Validation of Microscopic Traffic Flow Models},\n  journal = {Transportation Research Records},\n  year = {2005},\n  volume = {1934},\n  pages = {179--187},\n  month = {Januar},\n  abstract = {Since microscopic models are being heavily used in applications, the\n\tappropriate calibration and validation have been a recent concern.\n\tThe contribution of this paper is to compare some of these models\n\tby calibrating and validating them with data from double-loop detectors\n\ton a multilane freeway. To simplify this task, the test of the models\n\tis done by simplifying the multilane reality to a simulation of only\n\tsingle lane. The results show that by simulating the multilane road\n\twith single lane models, calibration errors (Theil?s U, root mean\n\tsquared error) of 14 % to 16 % can be obtained. A validation of the\n\tmodels ?which means taking calibrated parameters of one data set\n\tto reproduce the other data sets? gives additional errors of about\n\t0.5 to 2.5 percentage points. This is in good agreement with other\n\tcalibration/validation approaches performed recently.},\n  booktitle = {Transportation Research Board 2005},\n  editor = { Transportation Research Board},\n  keywords = {microscopic traffic flow models, calibration/validation, freeway data,\n\tDLR/TS/VM, model calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/20987/}\n}\n\n
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\n Since microscopic models are being heavily used in applications, the appropriate calibration and validation have been a recent concern. The contribution of this paper is to compare some of these models by calibrating and validating them with data from double-loop detectors on a multilane freeway. To simplify this task, the test of the models is done by simplifying the multilane reality to a simulation of only single lane. The results show that by simulating the multilane road with single lane models, calibration errors (Theil?s U, root mean squared error) of 14 % to 16 % can be obtained. A validation of the models ?which means taking calibrated parameters of one data set to reproduce the other data sets? gives additional errors of about 0.5 to 2.5 percentage points. This is in good agreement with other calibration/validation approaches performed recently.\n
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\n \n\n \n \n \n \n \n \n Calibration of car-following models using Kalman filters.\n \n \n \n \n\n\n \n Brockfeld, E.; and Lorkowski, S.\n\n\n \n\n\n\n In ISTTT 16, 2005. \n \n\n\n\n
\n\n\n\n \n \n \"CalibrationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Brockfeld2005,\n  author = {Elmar Brockfeld and Stefan Lorkowski},\n  title = {Calibration of car-following models using Kalman filters},\n  booktitle = {ISTTT 16},\n  year = {2005},\n  abstract = {Calibration and validation, especially of microscopic traffic flow\n\tmodels is a challenging task. Currently, ther is a renewed interest\n\tin results of those efforts [1, 2] as well as in developing the right\n\ttools to actually perform the calibration. The approach developed\n\tin [1] will be refined, extended and compared to an approach based\n\ton the recent development of a so called unscented Kalman filter\n\t[3]. These methods will be used to calibrate a couple of microscopic\n\ttraffic flow models to two sets of freeway data, one US-American\n\t(the I-880 FSP-dataset) and an European dataset, data from the German\n\tfreeway A100.},\n  keywords = {calibration, validation, Kalman filter, , DLR/TS/VM, model calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/22391/}\n}\n\n
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\n Calibration and validation, especially of microscopic traffic flow models is a challenging task. Currently, ther is a renewed interest in results of those efforts [1, 2] as well as in developing the right tools to actually perform the calibration. The approach developed in [1] will be refined, extended and compared to an approach based on the recent development of a so called unscented Kalman filter [3]. These methods will be used to calibrate a couple of microscopic traffic flow models to two sets of freeway data, one US-American (the I-880 FSP-dataset) and an European dataset, data from the German freeway A100.\n
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\n \n\n \n \n \n \n \n \n Congestion-Aware Vehicular Traffic Routing Using WiFi Hotspots.\n \n \n \n \n\n\n \n Beresford, D. N. C. A. J. J. D. A. A. R.\n\n\n \n\n\n\n In Communications Innovation Institute Workshop, April 2005. Cambridge-MIT Institute\n Conference Paper\n\n\n\n
\n\n\n\n \n \n \"Congestion-AwarePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 4 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Cottingham2005,\n  author = {David N. Cottingham AND Jonathan J. Davies AND Alastair R. Beresford},\n  title = {{Congestion-Aware Vehicular Traffic Routing Using WiFi Hotspots}},\n  booktitle = {{Communications Innovation Institute Workshop}},\n  year = {2005},\n  month = apr,\n  organization = {Cambridge-MIT Institute},\n  note = {Conference Paper},\n  keywords = {V2X, Assignment, University of Cambridge},\n  owner = {Jonathan Davies (jjd27)},\n  timestamp = {2011.09.19},\n  url = {http://www.cl.cam.ac.uk/research/dtg/www/files/publications/public/jjd27/ciiHandout.pdf}\n}\n\n
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\n \n\n \n \n \n \n \n \n Simulation of modern Traffic Lights Control Systems using the open source Traffic Simulation SUMO.\n \n \n \n \n\n\n \n Krajzewicz, D.; Brockfeld, E.; Mikat, J.; Ringel, J.; Rössel, C.; Tuchscheerer, W.; Wagner, P.; and Wösler, R.\n\n\n \n\n\n\n In Krüger, J.; Lisounkin, A.; and Schreck, G., editor(s), 3rd Industrial Simulation Conference 2005, pages 299–302, Juni 2005. EUROSIS-ETI\n \n\n\n\n
\n\n\n\n \n \n \"SimulationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2005a,\n  author = {Daniel Krajzewicz and Elmar Brockfeld and J\\"urgen Mikat and Julia\n\tRingel and C. R\\"ossel and Wolfram Tuchscheerer and Peter Wagner\n\tand Richard W\\"osler},\n  title = {Simulation of modern Traffic Lights Control Systems using the open\n\tsource Traffic Simulation SUMO},\n  booktitle = {3rd Industrial Simulation Conference 2005},\n  year = {2005},\n  editor = {J. Kr\\"uger and A. Lisounkin and G. Schreck},\n  pages = {299--302},\n  month = {Juni},\n  publisher = {EUROSIS-ETI},\n  abstract = {Within the project ?OIS? (optical information systems) new traffic\n\tcontrol mechanisms had to be invented and tested. One of the most\n\timportant topics was to optimize the flow over a junction using information\n\tfrom the OIS sensors which can not be measured using normal sensors\n\tsuch as induct loops. For this purpose, an ?agentbased? traffic lights\n\tlogic algorithm was used, which uses the length of a jam in front\n\tof a traffic light as input. As we had no possibility to test the\n\ttraffic lights control within the reality, the improvement of the\n\tflow throughput of such junctions was shown using the open source\n\ttraffic Simulation ?SUMO? (Simulation of Urban MObility) [1, 2].\n\tThis publication describes the algorithm itself and how it was embedded\n\twithin the simulation. Furthermore, the simulation results are given.},\n  journal = {Proceedings of the 3rd Industrial Simulation Conference 2005},\n  keywords = {Microscopic traffic simulation, open source, traffic lights, traffic\n\tresearch},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/21012/}\n}\n\n
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\n Within the project ?OIS? (optical information systems) new traffic control mechanisms had to be invented and tested. One of the most important topics was to optimize the flow over a junction using information from the OIS sensors which can not be measured using normal sensors such as induct loops. For this purpose, an ?agentbased? traffic lights logic algorithm was used, which uses the length of a jam in front of a traffic light as input. As we had no possibility to test the traffic lights control within the reality, the improvement of the flow throughput of such junctions was shown using the open source traffic Simulation ?SUMO? (Simulation of Urban MObility) [1, 2]. This publication describes the algorithm itself and how it was embedded within the simulation. Furthermore, the simulation results are given.\n
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\n \n\n \n \n \n \n \n \n Preparation of Digital Maps for Traffic Simulation; Part 1: Approach and Algorithms.\n \n \n \n \n\n\n \n Krajzewicz, D.; Hertkorn, G.; Ringel, J.; and Wagner, P.\n\n\n \n\n\n\n In Krüger, J.; Lisounkin, A.; and Schreck, G., editor(s), 3rd Industrial Simulation Conference 2005, pages 285–290, Juni 2005. EUROSIS-ETI\n \n\n\n\n
\n\n\n\n \n \n \"PreparationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2005,\n  author = {Daniel Krajzewicz and Georg Hertkorn and Julia Ringel and Peter Wagner},\n  title = {Preparation of Digital Maps for Traffic Simulation; Part 1: Approach\n\tand Algorithms},\n  booktitle = {3rd Industrial Simulation Conference 2005},\n  year = {2005},\n  editor = {J. Kr\\"uger and A. Lisounkin and G. Schreck},\n  pages = {285--290},\n  month = {Juni},\n  publisher = {EUROSIS-ETI},\n  abstract = {Traffic simulations are an accepted tool for investigations on road\n\ttraffic and used widely within the traffic science community. Modern\n\tcomputer systems are fast enough to model and simulate traffic within\n\tlarge areas at a microscopic scale regarding each vehicle, replacing\n\tmacroscopic simulations in most cases. Although microscopic traffic\n\tsimulations offer better quality than macroscopic ones, they also\n\tneed additional data to describe the modelled road networks. A street?s\n\tlanes are modelled explicitly within microscopic simulations and\n\tin most cases also the connections between their lanes over junctions.\n\tIf one wants to model large areas, the best source to get the description\n\tabout their road network is the usage of digital maps. Unfortunately,\n\tmost of these are used for routing purposes and do not contain the\n\tfine-grained information mentioned above that is needed by microscopic\n\tsimulations. This document describes an algorithm for the computation\n\tof the needed information from simple road networks.},\n  journal = {Proceedings of the 3rd Industrial Simulation Conference 2005},\n  keywords = {Microscopic traffic simulation, digital road maps, open source, traffic\n\tresearch},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/21013/}\n}\n\n
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\n Traffic simulations are an accepted tool for investigations on road traffic and used widely within the traffic science community. Modern computer systems are fast enough to model and simulate traffic within large areas at a microscopic scale regarding each vehicle, replacing macroscopic simulations in most cases. Although microscopic traffic simulations offer better quality than macroscopic ones, they also need additional data to describe the modelled road networks. A street?s lanes are modelled explicitly within microscopic simulations and in most cases also the connections between their lanes over junctions. If one wants to model large areas, the best source to get the description about their road network is the usage of digital maps. Unfortunately, most of these are used for routing purposes and do not contain the fine-grained information mentioned above that is needed by microscopic simulations. This document describes an algorithm for the computation of the needed information from simple road networks.\n
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\n \n\n \n \n \n \n \n \n Optimierung der Kommunikation zwischen am Verkehr beteiligten Strukturen.\n \n \n \n \n\n\n \n Lehr, S.\n\n\n \n\n\n\n Master's thesis, Fachhochschule f�r Technik und Wirtschaft Berlin, January 2005.\n \n\n\n\n
\n\n\n\n \n \n \"OptimierungPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n\n\n\n
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@MASTERSTHESIS{Lehr2005,\n  author = {Sebastian Lehr},\n  title = {Optimierung der Kommunikation zwischen am Verkehr beteiligten Strukturen},\n  school = {Fachhochschule f�r Technik und Wirtschaft Berlin},\n  year = {2005},\n  month = {January},\n  file = {:https\\://sumo.dlr.de/pdf/DiplomarbeitSebastianLehr.pdf:URL},\n  keywords = {Fachhochschule f�r Technik und Wirtschaft Berlin, DLR/TS/VM, sumo},\n  owner = {dkrajzew},\n  timestamp = {2011.09.19},\n  url = {https://sumo.dlr.de/pdf/DiplomarbeitSebastianLehr.pdf}\n}\n\n
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\n  \n 2004\n \n \n (7)\n \n \n
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\n \n\n \n \n \n \n \n \n Calibration and Validation of Microscopic Traffic Flow Models.\n \n \n \n \n\n\n \n Brockfeld, E.; Kühne, R.; and Wagner, P.\n\n\n \n\n\n\n In Board, T. R., editor(s), TRB Annual Meeting, volume 1876, pages 62–70, 2004. \n \n\n\n\n
\n\n\n\n \n \n \"CalibrationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Brockfeld2004c,\n  author = {Elmar Brockfeld and Reinhart K\\"uhne and Peter Wagner},\n  title = {Calibration and Validation of Microscopic Traffic Flow Models},\n  booktitle = {TRB Annual Meeting},\n  year = {2004},\n  editor = { Transportation Research Board},\n  volume = {1876},\n  number = {TRB2004-001743},\n  pages = {62--70},\n  abstract = {Microscopic simulation models are becoming increasingly important\n\ttools in modeling transport systems. There are a large number of\n\tavailable models used in many countries. the most difficult stage\n\tin the development and use of such models is the calibration and\n\tvalidation of the microscopic sub-models describing the traffic flow,\n\tsuch as the car following, lane changing and gap acceptance models.\n\tThis difficulty is due to the lack of suitable methods for adapting\n\tmodels to empirical data. The aim of this paper is to present recent\n\tprogress in calibratin a number of microscopic traffic flow models.\n\tBy calibrating and validating various models using the same data\n\tsets, the models are directly comparable to each other. This sets\n\tthe basis for a transparent benchmarking of those models. Furthermore,\n\tthe advantages and disadvantages of each model can be analyzed better\n\tto develop a more realistic behavior of the simulated vehicles In\n\tthis work various microscopic traffic flow models have been tested\n\tfrom a very microscopic point of view concerning the car-follwing\n\tbehavior and gap-acceptance. The data used for calibration and validation\n\tis from car-following experiments performed in Japan in October 2001.\n\tThe data have been collected by letting nine DGPS-equipped cars follow\n\ta lead car driving along a 3 km test track for about 15-30 minutes.\n\tSo one gets the positions and speeds of each car in time intervals\n\tof 0.1 seconds. The experiment was repeated eight times letting the\n\tleading driver perform various driving in waves and emulating many\n\tacceleations/decelerations as they are typical at intersections.\n\tTo minimize driver-dependent correlations between the data sets,\n\tthe drivers were exchanged between the cars regularly after each\n\texperiment},\n  journal = {TRB 2004 Annual Meeting},\n  keywords = {calibration, validation, traffic flow models, microscopic, GPS, DGPS,\n\tDLR/TS/VM, model calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/6652/}\n}\n\n
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\n Microscopic simulation models are becoming increasingly important tools in modeling transport systems. There are a large number of available models used in many countries. the most difficult stage in the development and use of such models is the calibration and validation of the microscopic sub-models describing the traffic flow, such as the car following, lane changing and gap acceptance models. This difficulty is due to the lack of suitable methods for adapting models to empirical data. The aim of this paper is to present recent progress in calibratin a number of microscopic traffic flow models. By calibrating and validating various models using the same data sets, the models are directly comparable to each other. This sets the basis for a transparent benchmarking of those models. Furthermore, the advantages and disadvantages of each model can be analyzed better to develop a more realistic behavior of the simulated vehicles In this work various microscopic traffic flow models have been tested from a very microscopic point of view concerning the car-follwing behavior and gap-acceptance. The data used for calibration and validation is from car-following experiments performed in Japan in October 2001. The data have been collected by letting nine DGPS-equipped cars follow a lead car driving along a 3 km test track for about 15-30 minutes. So one gets the positions and speeds of each car in time intervals of 0.1 seconds. The experiment was repeated eight times letting the leading driver perform various driving in waves and emulating many acceleations/decelerations as they are typical at intersections. To minimize driver-dependent correlations between the data sets, the drivers were exchanged between the cars regularly after each experiment\n
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\n \n\n \n \n \n \n \n \n Performance of car following behaviour in microscopic traffic flow models.\n \n \n \n \n\n\n \n Brockfeld, E.; Kelpin, R.; and Wagner, P.\n\n\n \n\n\n\n In Möhlenbrink, W.; Englmann, F.; Friedrich, M.; Martin, U.; and Hangleiter, U., editor(s), 2nd International Symposium \"Networks for Mobility\", pages 43–43, 2004. Universität Stuttgart\n \n\n\n\n
\n\n\n\n \n \n \"PerformancePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Brockfeld2004b,\n  author = {Elmar Brockfeld and Rene Kelpin and Peter Wagner},\n  title = {Performance of car following behaviour in microscopic traffic flow\n\tmodels},\n  booktitle = {2nd International Symposium "Networks for Mobility"},\n  year = {2004},\n  editor = {W. M\\"ohlenbrink and F.C. Englmann and M. Friedrich and U. Martin\n\tand U. Hangleiter},\n  pages = {43--43},\n  publisher = {Universit\\"at Stuttgart},\n  abstract = {Microscopic simulation models are becoming increasingly important\n\ttools in modelling transport systems. They are applied in simulation\n\tprograms for transport planning, traffic forecasting and advanced\n\tvehicle control and safety systems (AVCSS). An important part of\n\tthe models are the microscopic sub-models which describe the interaction\n\tbetween adjacent vehicles. For that purpose rules and equations are\n\tdefined describing the car-following and lane changing behaviour\n\tof the vehicles. An essential problem is the calibration and validation\n\tof the parameters used in these rules. In this paper ten microscopic\n\ttraffic flow models of very different kind are analysed concerning\n\tthe correct reproduction of the car-following behaviour on single\n\tlane roads. The models are calibrated and validated with data collected\n\tvia DGPS-equipped cars (Differential Global Positioning System) on\n\ta test track in Japan. The positions of the cars are delivered every\n\t0.1 second with very high accuracy, which is perfect for analysing\n\tthe car following behaviour. To calibrate the models, in each case\n\tone driver pair is under consideration. The measured data of a leading\n\tcar are fed into the model under consideration and the model is used\n\tto compute the behaviour of a following car. In the analysis the\n\tresulting simulated time series of headways are carried out and the\n\tdeviations to the measured headways are calculated to calibrate the\n\tmodels. To find the optimal parameters an automated optimisation\n\ttechnique is used which tries to minimise the deviations. For validation\n\tpurposes the resulting optimal parameter sets for single data sets\n\tare taken to reproduce some other data sets by simulation. At first,\n\tthis is done in a driver independent way, where the drivers in the\n\tdata set used for the calibration are different from those used for\n\tthe validation. Secondly, to investigate whether individual driver\n\tbehaviour can be reproduced better a driver-special validation is\n\tconducted, where the calibrated parameter sets obtained for each\n\tdriver are taken to validate the behaviour of the same driver in\n\tother situations. Main results of the analyses are that all models\n\tproduce nearly the same errors, thus sophisticated models with up\n\tto 15 parameters seem not to be better than simple models with only\n\t4 or 6 parameters. In total it is found that the differences in the\n\tdriver behaviour are much bigger than the diversity of the models.\n\tAt last, the validation with special driver pairs produces slightly\n\tbetter results than the driver-independent validation. Thus, the\n\tbehaviour of individual drivers can be reproduced a bit more accurately\n\tthan trying to transfer optimal parameter results from one driver\n\tto another.},\n  journal = {Networks for Mobility 2004, Proceedings - Abstracts and CD-ROM},\n  keywords = {simulation,model,microscopic models,calibration,validation,GPS,DGPS,car\n\tfollowing, DLR/TS/VM},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/21349/}\n}\n\n
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\n Microscopic simulation models are becoming increasingly important tools in modelling transport systems. They are applied in simulation programs for transport planning, traffic forecasting and advanced vehicle control and safety systems (AVCSS). An important part of the models are the microscopic sub-models which describe the interaction between adjacent vehicles. For that purpose rules and equations are defined describing the car-following and lane changing behaviour of the vehicles. An essential problem is the calibration and validation of the parameters used in these rules. In this paper ten microscopic traffic flow models of very different kind are analysed concerning the correct reproduction of the car-following behaviour on single lane roads. The models are calibrated and validated with data collected via DGPS-equipped cars (Differential Global Positioning System) on a test track in Japan. The positions of the cars are delivered every 0.1 second with very high accuracy, which is perfect for analysing the car following behaviour. To calibrate the models, in each case one driver pair is under consideration. The measured data of a leading car are fed into the model under consideration and the model is used to compute the behaviour of a following car. In the analysis the resulting simulated time series of headways are carried out and the deviations to the measured headways are calculated to calibrate the models. To find the optimal parameters an automated optimisation technique is used which tries to minimise the deviations. For validation purposes the resulting optimal parameter sets for single data sets are taken to reproduce some other data sets by simulation. At first, this is done in a driver independent way, where the drivers in the data set used for the calibration are different from those used for the validation. Secondly, to investigate whether individual driver behaviour can be reproduced better a driver-special validation is conducted, where the calibrated parameter sets obtained for each driver are taken to validate the behaviour of the same driver in other situations. Main results of the analyses are that all models produce nearly the same errors, thus sophisticated models with up to 15 parameters seem not to be better than simple models with only 4 or 6 parameters. In total it is found that the differences in the driver behaviour are much bigger than the diversity of the models. At last, the validation with special driver pairs produces slightly better results than the driver-independent validation. Thus, the behaviour of individual drivers can be reproduced a bit more accurately than trying to transfer optimal parameter results from one driver to another.\n
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\n \n\n \n \n \n \n \n \n Testing and Benchmarking of Microscopic Traffic Flow Models.\n \n \n \n \n\n\n \n Brockfeld, E.; and Wagner, P.\n\n\n \n\n\n\n In WCTR04 - 10th World Conference on Transport Research, volume abstract book I, pages 775–776, 2004. \n \n\n\n\n
\n\n\n\n \n \n \"TestingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Brockfeld2004,\n  author = {Elmar Brockfeld and Peter Wagner},\n  title = {Testing and Benchmarking of Microscopic Traffic Flow Models},\n  booktitle = {WCTR04 - 10th World Conference on Transport Research},\n  year = {2004},\n  volume = {abstract book I},\n  number = {A-D},\n  pages = {775--776},\n  abstract = {Microscopic simulation models are becoming increasingly important\n\ttools in modelling transport systems. There are large number of available\n\tmodels used in many countries. The important difficult stage in the\n\tdevelopment and use of such models is the calibration and validation\n\tof the microscopic sub-models describing the traffic flow, such as\n\tthe car following models for example. The aim of this paper is to\n\tpresent recent progress in calibrating more than a dozen microscopic\n\ttraffic flow models with very different data sets conducted by DGPS-equipped\n\tcars (Differential Global Positioning System), loop detectors and\n\thuman observers. Different approaches to measure the errors the models\n\tproduce in comparison to reality are compared. It can be stated that\n\tfrom a microscopic point of view errors of about 15-20 % in headway-\n\tand travel time-estimation and about 2-7 % in speed-estimation of\n\tindividual vehicles in the car following process seem to be the minimal\n\treachable level. Furthermore, the larger the simulation horizon is,\n\tthe smaller the diversity of the analyzed models become in comparison\n\tto the diversity in the driver behaviour. Most interesting, no model\n\tcold be denoted to be the best and especially highly sophisticated\n\tmodels did not produce better results than very simple ones.},\n  journal = {Proceedings of the 10th World Conference on Transport Research},\n  keywords = {traffic flow modeling, benchmarking, simulation, GPS, DLR/TS/VM, model\n\tcalibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/6709/}\n}\n\n
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\n Microscopic simulation models are becoming increasingly important tools in modelling transport systems. There are large number of available models used in many countries. The important difficult stage in the development and use of such models is the calibration and validation of the microscopic sub-models describing the traffic flow, such as the car following models for example. The aim of this paper is to present recent progress in calibrating more than a dozen microscopic traffic flow models with very different data sets conducted by DGPS-equipped cars (Differential Global Positioning System), loop detectors and human observers. Different approaches to measure the errors the models produce in comparison to reality are compared. It can be stated that from a microscopic point of view errors of about 15-20 % in headway- and travel time-estimation and about 2-7 % in speed-estimation of individual vehicles in the car following process seem to be the minimal reachable level. Furthermore, the larger the simulation horizon is, the smaller the diversity of the analyzed models become in comparison to the diversity in the driver behaviour. Most interesting, no model cold be denoted to be the best and especially highly sophisticated models did not produce better results than very simple ones.\n
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\n \n\n \n \n \n \n \n \n Kalibrierung und Validierung von mikroskopischen Verkehrsflussmodellen.\n \n \n \n \n\n\n \n Brockfeld, E.; and Wagner, P.\n\n\n \n\n\n\n 2004.\n \n\n\n\n
\n\n\n\n \n \n \"KalibrierungPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@UNPUBLISHED{Brockfeld2004a,\n  author = {Elmar Brockfeld and Peter Wagner},\n  title = {Kalibrierung und Validierung von mikroskopischen Verkehrsflussmodellen},\n  year = {2004},\n  abstract = {Mikroskopische Verkehrsmodelle entwickeln sich zu immer wichtigeren\n\tHilfsmitteln bei der Modellierung von Transportsystemen. Sie helfen\n\tbei der Infrastrukturplanung und beim Design von kleinr?umigen Bereichen\n\twie etwa Ampelkreuzungen bis hin zu gro?en Verkehrsnetzen. Auch im\n\tBereich der Verkehrsprognose, speziell der Kurzfristprognose und\n\tbei der Entwicklung von Fahrerassistenzsystemen werde sie immer h?ufiger\n\teingesetzt. Von diesen Modellen gibt es eine sehr gro?e Anzahl, die\n\tin vielen verschiedenen L?ndern eingesetzt werden. Oft ist jedoch\n\tnicht hinreichend klar, welches Modell welche Verkehrsph?nomene und\n\tFahrerverhalten wie genau abbildet. Der schwierigste Schritt bei\n\tder Entwicklung und Nutzung solcher Modelle ist der Abgleich der\n\tmikroskopischen Teilmodelle, die den Verkehrsfluss beschreiben, mit\n\trealen Daten - also die Kalibrierung und Validierung. Diese Teilmodelle\n\tsind z. B. Fahrzeugfolgemodelle, Spurwechselmodelle und Abstands-Akzeptanz-Modelle.\n\tDie Schwierigkeit der Kalibrierung liegt vor allem darin, dass derzeit\n\tnoch keine Methoden etabliert sind, wie die Modell mikroskopisch\n\tmit realen Daten verglichen werden sollten. Im Vortrag werden methoden\n\thierf?r vorgeschlagen und aktuelle Forschungsergebnisse bzgl. des\n\tVergleichs verschiedener Verkehrsflussmodelle anhand realer Daten\n\tvorgestellt. Die Modell wurden alle mit denselben ?ffentlich zug?nglichen\n\tDatens?tzen kalibriert und validiert, wodurch vor allem Vergleichbarkeit\n\tund Transparenz der ERgebnisse hergestellt wird. Ein wesentliches\n\tErgebnis ist bisher, dass komplexere Modelle nicht notwendigerweise\n\tbesser sein m?ssen als sehr einfach strukturierte. Ferner geben die\n\tErgebnisse Hinweise auf eine bisher unzureichende Abbildung des Fahrerverhaltens\n\tin den Modellen.},\n  booktitle = {Braunschweiger Verkehrskolloquium des Zentrumf f\\"ur Verkehr (ZVB)},\n  keywords = {Kalibrierung, Validierung, Fahrzeugdaten, Modelle, Simulation, DLR/TS/VM,\n\tmodel calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/6706/}\n}\n\n
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\n Mikroskopische Verkehrsmodelle entwickeln sich zu immer wichtigeren Hilfsmitteln bei der Modellierung von Transportsystemen. Sie helfen bei der Infrastrukturplanung und beim Design von kleinr?umigen Bereichen wie etwa Ampelkreuzungen bis hin zu gro?en Verkehrsnetzen. Auch im Bereich der Verkehrsprognose, speziell der Kurzfristprognose und bei der Entwicklung von Fahrerassistenzsystemen werde sie immer h?ufiger eingesetzt. Von diesen Modellen gibt es eine sehr gro?e Anzahl, die in vielen verschiedenen L?ndern eingesetzt werden. Oft ist jedoch nicht hinreichend klar, welches Modell welche Verkehrsph?nomene und Fahrerverhalten wie genau abbildet. Der schwierigste Schritt bei der Entwicklung und Nutzung solcher Modelle ist der Abgleich der mikroskopischen Teilmodelle, die den Verkehrsfluss beschreiben, mit realen Daten - also die Kalibrierung und Validierung. Diese Teilmodelle sind z. B. Fahrzeugfolgemodelle, Spurwechselmodelle und Abstands-Akzeptanz-Modelle. Die Schwierigkeit der Kalibrierung liegt vor allem darin, dass derzeit noch keine Methoden etabliert sind, wie die Modell mikroskopisch mit realen Daten verglichen werden sollten. Im Vortrag werden methoden hierf?r vorgeschlagen und aktuelle Forschungsergebnisse bzgl. des Vergleichs verschiedener Verkehrsflussmodelle anhand realer Daten vorgestellt. Die Modell wurden alle mit denselben ?ffentlich zug?nglichen Datens?tzen kalibriert und validiert, wodurch vor allem Vergleichbarkeit und Transparenz der ERgebnisse hergestellt wird. Ein wesentliches Ergebnis ist bisher, dass komplexere Modelle nicht notwendigerweise besser sein m?ssen als sehr einfach strukturierte. Ferner geben die Ergebnisse Hinweise auf eine bisher unzureichende Abbildung des Fahrerverhaltens in den Modellen.\n
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\n \n\n \n \n \n \n \n \n Recent Extensions to the open source Traffic Simulation SUMO.\n \n \n \n \n\n\n \n Krajzewicz, D.; Hartinger, M.; Hertkorn, G.; Nicolay, E.; Rössel, C.; Ringel, J.; and Wagner, P.\n\n\n \n\n\n\n In WCTR04 - 10th World Conference on Transport Research, 2004. \n \n\n\n\n
\n\n\n\n \n \n \"RecentPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2004b,\n  author = {Daniel Krajzewicz and Markus Hartinger and Georg Hertkorn and Eric\n\tNicolay and Christian R\\"ossel and Julia Ringel and Peter Wagner},\n  title = {Recent Extensions to the open source Traffic Simulation SUMO},\n  booktitle = {WCTR04 - 10th World Conference on Transport Research},\n  year = {2004},\n  abstract = {"SUMO" is the acronym for "Simulation of Urban MObility", an open\n\tsource simulation package developed since 2000 at the Institute for\n\tTransportation Research at the German Aerospace Centre (DLR) and\n\tthe Centre for Applied Informatics, Cologne (ZAIK). This quite ambitious\n\tproject has recently entered his version 0.8 and we will describe\n\tsome of the new features herein. Some of them are a new visualisation\n\tmodule, an extension of the junction concept, simulation of actuated\n\ttraffic lights and many more. We hope this information to be interesting\n\tfor the traffic science community as the software may be downloaded\n\tand extended for free.},\n  journal = {Proceedings of the 10th World Conference on Transport Research (on\n\tCD)},\n  keywords = {SUMO},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/19475/}\n}\n\n
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\n \"SUMO\" is the acronym for \"Simulation of Urban MObility\", an open source simulation package developed since 2000 at the Institute for Transportation Research at the German Aerospace Centre (DLR) and the Centre for Applied Informatics, Cologne (ZAIK). This quite ambitious project has recently entered his version 0.8 and we will describe some of the new features herein. Some of them are a new visualisation module, an extension of the junction concept, simulation of actuated traffic lights and many more. We hope this information to be interesting for the traffic science community as the software may be downloaded and extended for free.\n
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\n \n\n \n \n \n \n \n \n A Car Driver's Cognition Model.\n \n \n \n \n\n\n \n Krajzewicz, D.; Kühne, R.; and Wagner, P.\n\n\n \n\n\n\n In ITS Safety and Security Conference, volume CD, 2004. \n \n\n\n\n
\n\n\n\n \n \n \"APaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2004a,\n  author = {Daniel Krajzewicz and Reinhart K\\"uhne and Peter Wagner},\n  title = {A Car Driver's Cognition Model},\n  booktitle = {ITS Safety and Security Conference},\n  year = {2004},\n  volume = {CD},\n  abstract = {There is a basic need in transportation planning and traffic engineering\n\tfor developing and testing traffic models of different granularity.\n\tAlthough our major intrest is the replication of traffic within larger\n\tareas, both the current research on traffic safety and the desire\n\tto improve the quality of microscopic simulations makes it necessary\n\tto deal with the car driver?s cognition on a finer scale. This paper\n\tpresents our model assumptions for such sub-microscopic simulations,\n\twhich are based on results from cognitive psychology. Although some\n\tpreliminary work of this type is available, most of these applications\n\tare not open to the public, which makes them useless for scientific\n\tpurposes. the cognition simulations availabele up to now mostly deal\n\twithmemory processes and are not easily extendable by further structures\n\tsuch as vehickles with their dynamics or a representation of the\n\tsimulated environment. These considerations motivated us to develop\n\tthe above mentioned model from scratch. The design of the model described\n\therein includes sub-models of a human being?s perception, visual\n\tattention, internal environment representation and decision making\n\tas well as the execution of actions in a simulated vehicle. Results\n\tboth from cognitive psychology and the research on human-machine\n\tinteraction are incorporated. This paper reveals our premises for\n\ta driver?s cognition model and describes the model itself, followed\n\tby a discussion of the model?s restrictions. As the implementation\n\tprocess is not yet closed, only some basic results are presented\n\tand a look into the furture of the model is given.},\n  file = {:http\\://elib.dlr.de/6671/2/ITS_dkrajzew_ss25-29.pdf:URL},\n  journal = {Proceedings of Intelligent Transportation Systems Safety and Security\n\tConference},\n  keywords = {driver modeling, cognition, sub-microscopic traffic flow modelling,\n\tmodel, lane-changing, Verkehrsmodellierung, Simulation, Anwendungen,\n\tModelle, Programme, Verkehrssicherheit, Verkehrstr?ger Stra?e},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/6671/}\n}\n\n
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\n There is a basic need in transportation planning and traffic engineering for developing and testing traffic models of different granularity. Although our major intrest is the replication of traffic within larger areas, both the current research on traffic safety and the desire to improve the quality of microscopic simulations makes it necessary to deal with the car driver?s cognition on a finer scale. This paper presents our model assumptions for such sub-microscopic simulations, which are based on results from cognitive psychology. Although some preliminary work of this type is available, most of these applications are not open to the public, which makes them useless for scientific purposes. the cognition simulations availabele up to now mostly deal withmemory processes and are not easily extendable by further structures such as vehickles with their dynamics or a representation of the simulated environment. These considerations motivated us to develop the above mentioned model from scratch. The design of the model described herein includes sub-models of a human being?s perception, visual attention, internal environment representation and decision making as well as the execution of actions in a simulated vehicle. Results both from cognitive psychology and the research on human-machine interaction are incorporated. This paper reveals our premises for a driver?s cognition model and describes the model itself, followed by a discussion of the model?s restrictions. As the implementation process is not yet closed, only some basic results are presented and a look into the furture of the model is given.\n
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\n \n\n \n \n \n \n \n \n Ansätze zur kognitiven Simulation eines Autofahrers.\n \n \n \n \n\n\n \n Krajzewicz, D.; and Wagner, P.\n\n\n \n\n\n\n MMI-Interaktiv, (7): 84–97. 2004.\n \n\n\n\n
\n\n\n\n \n \n \"AnsätzePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@ARTICLE{Krajzewicz2004,\n  author = {Daniel Krajzewicz and Peter Wagner},\n  title = {Ans\\"atze zur kognitiven Simulation eines Autofahrers},\n  journal = {MMI-Interaktiv},\n  year = {2004},\n  pages = {84--97},\n  number = {7},\n  abstract = {Das Institut f?r Verkehrsforschung am Deutschen Zentrum f?r Luft-\n\tund Raumfahrt (IVF/DLR) setzt in vielen Projekten Simulationen des\n\tStra?enverkehrs ein, z. B. um Schwachstellen in Verkehrsnetzen zu\n\tfinden oder um Ger?te zur Verkehrskontrolle oder -beeinflussung w?hrend\n\tihrer Entwicklung zu bewerten. In der Regel kommen dabei sogenannte\n\tmikroskopische Simulationen zum Einsatz, deren betrachtete Gr??e\n\tein Fahrer-Fahrzeug-Objekt ist, das die Bewegung eines Fahrzeugs\n\tim Verkehrsnetz durch wenige Gleichungen beschreibt. Solche Modell\n\terlauben die Simulation des Stra?enverkehrs gro?er St?dte in Echtzeit,\n\tallerdings bilden sie den Przess des Fahrzeugf?hrens nur vereinfacht\n\tab. Innerhalb eines der Projekte des IVF soll das Verhalten eines\n\teinzelnen Autofahrers genauer untersucht und modelliert werden. W?hrend\n\tsolche Modelle auch f?r andere Gebiete der Verkehrsforschung interessant\n\tsind, z. B. der Forschung zu Fahrsicherheit oder zu Fahrerassistenzsystemen,\n\terhoffen wir uns, so R?ckschl?sse auf den Verkehrsfluss ziehen und\n\tsomit die Qualit?t mikroskopischer Modell erh?hen zu k?nnen. Im Rahmen\n\tdieses Berichts sollen nach einer kurzen Einf?hrung in die Thematik\n\t&quot;Verkehrssimulation&quot; unsere ersten Ans?tze zum Aufbau einer\n\tin ein simuliertes Verkehrsgeschehen integrierten Simulation der\n\tFahrerkognition gegeben werden.},\n  editor = {S. Leuchter and M. C. Kindsm\\"uller and D. Schulze-Kissing and L.\n\tUrbas},\n  file = {:http\\://elib.dlr.de/6721/2/zmms_krajzewicz_wagner.pdf:URL},\n  keywords = {Fahrermodellierung, Verkehrssimulationen, Verkehrsmodelle, Kognition},\n  owner = {Daniel},\n  publisher = {Technische Universit\\"at Berlin},\n  series = {Modellierung und Simulation in Mensch-Maschine-Systemen},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/6721/}\n}\n\n
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\n Das Institut f?r Verkehrsforschung am Deutschen Zentrum f?r Luft- und Raumfahrt (IVF/DLR) setzt in vielen Projekten Simulationen des Stra?enverkehrs ein, z. B. um Schwachstellen in Verkehrsnetzen zu finden oder um Ger?te zur Verkehrskontrolle oder -beeinflussung w?hrend ihrer Entwicklung zu bewerten. In der Regel kommen dabei sogenannte mikroskopische Simulationen zum Einsatz, deren betrachtete Gr??e ein Fahrer-Fahrzeug-Objekt ist, das die Bewegung eines Fahrzeugs im Verkehrsnetz durch wenige Gleichungen beschreibt. Solche Modell erlauben die Simulation des Stra?enverkehrs gro?er St?dte in Echtzeit, allerdings bilden sie den Przess des Fahrzeugf?hrens nur vereinfacht ab. Innerhalb eines der Projekte des IVF soll das Verhalten eines einzelnen Autofahrers genauer untersucht und modelliert werden. W?hrend solche Modelle auch f?r andere Gebiete der Verkehrsforschung interessant sind, z. B. der Forschung zu Fahrsicherheit oder zu Fahrerassistenzsystemen, erhoffen wir uns, so R?ckschl?sse auf den Verkehrsfluss ziehen und somit die Qualit?t mikroskopischer Modell erh?hen zu k?nnen. Im Rahmen dieses Berichts sollen nach einer kurzen Einf?hrung in die Thematik "Verkehrssimulation" unsere ersten Ans?tze zum Aufbau einer in ein simuliertes Verkehrsgeschehen integrierten Simulation der Fahrerkognition gegeben werden.\n
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\n  \n 2003\n \n \n (6)\n \n \n
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\n \n\n \n \n \n \n \n \n Towards a benchmarking of Microscopic Traffic Flow Models.\n \n \n \n \n\n\n \n Brockfeld, E.; Kühne, R.; Skabardonis, A.; and Wagner, P.\n\n\n \n\n\n\n Transportation Research Records, 1852(TRB2003-001164): 124–129. 2003.\n \n\n\n\n
\n\n\n\n \n \n \"TowardsPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 2 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@ARTICLE{Brockfeld2003a,\n  author = {Elmar Brockfeld and Reinhart K\\"uhne and Alexander Skabardonis and\n\tPeter Wagner},\n  title = {Towards a benchmarking of Microscopic Traffic Flow Models},\n  journal = {Transportation Research Records},\n  year = {2003},\n  volume = {1852},\n  pages = {124--129},\n  number = {TRB2003-001164},\n  abstract = {Several microscopic traffic models have been tested with a publicly\n\tavailable data set. The task was to predict the travel times between\n\tsever observers along a one-lane rural road, given as boundary conditions\n\tthe flow into this road and the flow out of it. By using nonlinear\n\toptimization, for each of the models the best matching set of parameters\n\thave been estimated. For this particular data set, the models that\n\tperformed best are the ones with the smalles number of parameters.\n\tThe average error rate of the models is about 16 %, however, this\n\tvalue is not very reliable: the error rate fluctuates between 2.5\n\tand 25 % for different parts of the data set.},\n  booktitle = {82nd Annual Meeting Transportation Research Board},\n  editor = { Transportation Research Board},\n  keywords = {calibration, validation, simulation, models, microscopic flow models,\n\tDLR/TS/VM, model calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/6646/}\n}\n\n
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\n Several microscopic traffic models have been tested with a publicly available data set. The task was to predict the travel times between sever observers along a one-lane rural road, given as boundary conditions the flow into this road and the flow out of it. By using nonlinear optimization, for each of the models the best matching set of parameters have been estimated. For this particular data set, the models that performed best are the ones with the smalles number of parameters. The average error rate of the models is about 16 %, however, this value is not very reliable: the error rate fluctuates between 2.5 and 25 % for different parts of the data set.\n
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\n \n\n \n \n \n \n \n \n Calibration and Validation of Microscopic Traffic Flow Models.\n \n \n \n \n\n\n \n Brockfeld, E.; and Wagner, P.\n\n\n \n\n\n\n In Bovy, P. H. L.; Hoogendoorn, S. P.; Schreckenberg, M.; and Wolf, D. E., editor(s), Traffic and Granular Flow '03, 2003. Springer\n \n\n\n\n
\n\n\n\n \n \n \"CalibrationPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Brockfeld2003,\n  author = {Elmar Brockfeld and Peter Wagner},\n  title = {Calibration and Validation of Microscopic Traffic Flow Models},\n  booktitle = {Traffic and Granular Flow '03},\n  year = {2003},\n  editor = {P. H. L. Bovy and S. P. Hoogendoorn and M. Schreckenberg and D. E.\n\tWolf},\n  publisher = {Springer},\n  abstract = {Microscopic simulation models are becoming increasingly important\n\ttools in modeling transport systems. There are a large number of\n\tavailable models used in many countries. The most difficult stage\n\tin the development and use of such models is the calibration and\n\tvalidation of the microscopic sub-models describing the traffic flow,\n\tsuch as the car following, lane changing and gap acceptance models.\n\tThis difficulty is due to the lack of suitable methods for adapting\n\tmodels to empirical data. The aim of this paper is to present recent\n\tprogress in calibrating a number of microscopic traffic flow models.\n\tBy calibrating and validating various models using the same data\n\tsets, the models are directly comparable to each other. This sets\n\tthe basis for a transparent benchmarking of those models. Furthermore,\n\tthe advantages and disadvantages of each model can be analyzed better\n\tto develop a more realistic behavior of the simulated vehicles.\n\n\n\tIn this work various microscopic traffic flow models have been tested\n\tfrom a very microscopic point of view concerning the car-following\n\tbehavior and gap-acceptance. The data used for calibration and validation\n\tis from car-following experiments performed in Japan in October 2001.\n\tThe data have been collected by letting nine DGPS-equipped cars follow\n\ta lead car driving along a 3 km test track for about 15-30 minutes.\n\tSo one gets the positions and speeds of each car in time intervals\n\tof 0.1 seconds. The experiment was repeated eight times letting the\n\tleading driver perform various driving patterns as there are constant\n\tspeeds of 20, 40, 60 and 80 km/h for some time, driving in waves\n\tand emulating many accelerations/decelerations as they are typical\n\tat intersections. To minimize driver-dependent correlations between\n\tthe data sets, the drivers were exchanged between the cars regularly\n\tafter each experiment.\n\n\n\tIn this paper we present analyses concerning four of the experiments,\n\tnamely the patterns mostly with intervals of constant speeds and\n\twave-performing. For each of the four experiments one gets the ten\n\ttrajectories of the cars in form of the DGPS-positions and speeds.\n\tFrom these the accelerations and distances/gaps between the cars\n\thave been calculated, which are used then for the simulation runs.<br/>\n\n\tThe study was done analyzing the time-development of the gaps between\n\tthe cars. For the simulation setup only two cars are considered at\n\ta time. The leading car is updated as the speeds in the recorded\n\tdata sets tell and the following car is updated as defined by the\n\tequations and rules of the used model, respectively. The absolute\n\terror a model produces is calculated via the simple quadratic distance\n\tbetween the recorded gaps and the simulated gaps. To get a percentage\n\terror it is additionally related to the mean average gap in each\n\tdata set. Altogether 36 vehicle pairs (4 experiments * 9 vehicle\n\tpairs) were used as data sets for the analyses.\n\n\n\tEach model has been calibrated with each of the 36 different constellations\n\tseparately gaining optimal parameter sets for each ?model - data\n\tset? combination. To find the optimal parameter constellations a\n\tgradient-free optimization method was used and started several times\n\twith different initialization values for each ?model - data set?\n\tpair. The variation in initialization is done to avoid sticking with\n\ta local minimum, which of course can occur because getting a global\n\tminimum can not be guaranteed by those type of optimization algorithms.\n\tSubsequently, the validation was performed by determining the error\n\tof a given model on all the data sets which have not been used to\n\tcalibrate the model.\n\n\n\tBy now, ten microscopic models of a very different kind using 3 to\n\t14 parameters have been tested. The most basic parameters used by\n\tthe models are the car length, a maximum velocity, an acceleration\n\tand mostly a deceleration rate. The acceleration and deceleration\n\trates are specified in more detail in some models depending on the\n\trecent speed or traffic states (indicated by density for example).\n\tFurthermore, some models use a parameter for random braking or another\n\tkind of stochastic parameter describing individual driver behavior.\n\tFinally, few models use much more parameters to describe the driver?s\n\tbehavior, which will be briefly described in the final paper. As\n\tthe time step for the models is 0.1 seconds according to the recorded\n\tdata, some models with a traditional time step of 1 second ? as for\n\texample used for simple cellular automatons - have been modified\n\tto adopt for an arbitrarily small time-step. So far the models tested\n\tare as follows (more will be added): - CA (cellular automaton model\n\tby K. Nagel, M. Schreckenberg), - SK-model (model by S. Krauss),\n\t- OVM (?Optimal Velocity Model?, Bando, Hasebe), - IDM (?Intelligent\n\tDriver Model?, Helbing), - IDMM (?Intelligent Driver Model with Memory?,\n\tHelbing, Treiber), - CATauT (CA model with more variable acceleration\n\tand deceleration, own development), - GIPPSLIKE (basic model by P.G.\n\tGipps), - Aerde (model used in the simulation package INTEGRATION),\n\t- FRITZSCHE (model used in the british software PARAMICS; it is similar\n\tto what is used in the german software VISSIM by PTV), - MitSim (model\n\tby Yang, Koutsopulus, used in the software MitSim).\n\n\n\tThe error rates of the models in comparison to the data sets during\n\tthe calibration for each model reach from 9 to 24 %. But no model\n\tappears to be significantly the best one since every model has the\n\tsame problems with distinct data sets and other data sets can be\n\tsimulated quite good with each model. Interestingly, it can be stated\n\tthat models with more parameters than others do not necessarily reproduce\n\tthe real data better. The results of the validation process draw\n\ta similar picture. The produced errors in these cases are about 12\n\tto 30 %, sometimes up to 40 or 60%, which is of course much bigger\n\tthan in the simple calibration cases. All in all the results after\n\tthe calibration agree with some results that have been obtained before.\n\tBut the results of the validation are in parts very bad which probably\n\tcalls for the development of much better models. The other way to\n\tinterpret the results is that ? from this microscopic point of view\n\t? errors of about 12-30 % can probably not be suppressed no matter\n\twhat a model is used. This would be due to the different behavior\n\tof each driver.},\n  journal = {Traffic and Granular Flow '03},\n  keywords = {calibration, validation, models, traffic flow models, microscopic,\n\tDLR/TS/VM, model calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/6653/}\n}\n\n
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\n Microscopic simulation models are becoming increasingly important tools in modeling transport systems. There are a large number of available models used in many countries. The most difficult stage in the development and use of such models is the calibration and validation of the microscopic sub-models describing the traffic flow, such as the car following, lane changing and gap acceptance models. This difficulty is due to the lack of suitable methods for adapting models to empirical data. The aim of this paper is to present recent progress in calibrating a number of microscopic traffic flow models. By calibrating and validating various models using the same data sets, the models are directly comparable to each other. This sets the basis for a transparent benchmarking of those models. Furthermore, the advantages and disadvantages of each model can be analyzed better to develop a more realistic behavior of the simulated vehicles. In this work various microscopic traffic flow models have been tested from a very microscopic point of view concerning the car-following behavior and gap-acceptance. The data used for calibration and validation is from car-following experiments performed in Japan in October 2001. The data have been collected by letting nine DGPS-equipped cars follow a lead car driving along a 3 km test track for about 15-30 minutes. So one gets the positions and speeds of each car in time intervals of 0.1 seconds. The experiment was repeated eight times letting the leading driver perform various driving patterns as there are constant speeds of 20, 40, 60 and 80 km/h for some time, driving in waves and emulating many accelerations/decelerations as they are typical at intersections. To minimize driver-dependent correlations between the data sets, the drivers were exchanged between the cars regularly after each experiment. In this paper we present analyses concerning four of the experiments, namely the patterns mostly with intervals of constant speeds and wave-performing. For each of the four experiments one gets the ten trajectories of the cars in form of the DGPS-positions and speeds. From these the accelerations and distances/gaps between the cars have been calculated, which are used then for the simulation runs.
The study was done analyzing the time-development of the gaps between the cars. For the simulation setup only two cars are considered at a time. The leading car is updated as the speeds in the recorded data sets tell and the following car is updated as defined by the equations and rules of the used model, respectively. The absolute error a model produces is calculated via the simple quadratic distance between the recorded gaps and the simulated gaps. To get a percentage error it is additionally related to the mean average gap in each data set. Altogether 36 vehicle pairs (4 experiments * 9 vehicle pairs) were used as data sets for the analyses. Each model has been calibrated with each of the 36 different constellations separately gaining optimal parameter sets for each ?model - data set? combination. To find the optimal parameter constellations a gradient-free optimization method was used and started several times with different initialization values for each ?model - data set? pair. The variation in initialization is done to avoid sticking with a local minimum, which of course can occur because getting a global minimum can not be guaranteed by those type of optimization algorithms. Subsequently, the validation was performed by determining the error of a given model on all the data sets which have not been used to calibrate the model. By now, ten microscopic models of a very different kind using 3 to 14 parameters have been tested. The most basic parameters used by the models are the car length, a maximum velocity, an acceleration and mostly a deceleration rate. The acceleration and deceleration rates are specified in more detail in some models depending on the recent speed or traffic states (indicated by density for example). Furthermore, some models use a parameter for random braking or another kind of stochastic parameter describing individual driver behavior. Finally, few models use much more parameters to describe the driver?s behavior, which will be briefly described in the final paper. As the time step for the models is 0.1 seconds according to the recorded data, some models with a traditional time step of 1 second ? as for example used for simple cellular automatons - have been modified to adopt for an arbitrarily small time-step. So far the models tested are as follows (more will be added): - CA (cellular automaton model by K. Nagel, M. Schreckenberg), - SK-model (model by S. Krauss), - OVM (?Optimal Velocity Model?, Bando, Hasebe), - IDM (?Intelligent Driver Model?, Helbing), - IDMM (?Intelligent Driver Model with Memory?, Helbing, Treiber), - CATauT (CA model with more variable acceleration and deceleration, own development), - GIPPSLIKE (basic model by P.G. Gipps), - Aerde (model used in the simulation package INTEGRATION), - FRITZSCHE (model used in the british software PARAMICS; it is similar to what is used in the german software VISSIM by PTV), - MitSim (model by Yang, Koutsopulus, used in the software MitSim). The error rates of the models in comparison to the data sets during the calibration for each model reach from 9 to 24 %. But no model appears to be significantly the best one since every model has the same problems with distinct data sets and other data sets can be simulated quite good with each model. Interestingly, it can be stated that models with more parameters than others do not necessarily reproduce the real data better. The results of the validation process draw a similar picture. The produced errors in these cases are about 12 to 30 %, sometimes up to 40 or 60%, which is of course much bigger than in the simple calibration cases. All in all the results after the calibration agree with some results that have been obtained before. But the results of the validation are in parts very bad which probably calls for the development of much better models. The other way to interpret the results is that ? from this microscopic point of view ? errors of about 12-30 % can probably not be suppressed no matter what a model is used. This would be due to the different behavior of each driver.\n
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\n \n\n \n \n \n \n \n \n A Cognitive Driver Model.\n \n \n \n \n\n\n \n Krajzewicz, D.\n\n\n \n\n\n\n In ECTRI 2003 - Young Researcher Seminar, 2003. \n \n\n\n\n
\n\n\n\n \n \n \"APaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2003c,\n  author = {Daniel Krajzewicz},\n  title = {A Cognitive Driver Model},\n  booktitle = {ECTRI 2003 - Young Researcher Seminar},\n  year = {2003},\n  abstract = {many different approaches to understand the process of driving a car\n\texist, we try to simulate it within this project. This methodology\n\tfits wll into our institute?s work where traffic simulations play\n\tan important role. We not only hope to gain some information about\n\tthe most concerned topics on driver related problems - issues on\n\tergonomics and traffic security - but also some knowledge about traffic\n\titself. We hope this knowledge will help us to improve microscopic\n\ttraffic models used for large area simulations. Herein, som basic\n\tconcepts the model incorporates and the main problems during the\n\tresearch and implementation are described.},\n  file = {:http\\://elib.dlr.de/6718/1/YRS2003_dkrajzew_mod.pdf:URL},\n  journal = {ECTRI Report 2003-03},\n  keywords = {simulation, cognitive car driver model},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/6718/}\n}\n\n
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\n many different approaches to understand the process of driving a car exist, we try to simulate it within this project. This methodology fits wll into our institute?s work where traffic simulations play an important role. We not only hope to gain some information about the most concerned topics on driver related problems - issues on ergonomics and traffic security - but also some knowledge about traffic itself. We hope this knowledge will help us to improve microscopic traffic models used for large area simulations. Herein, som basic concepts the model incorporates and the main problems during the research and implementation are described.\n
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\n \n\n \n \n \n \n \n \n Using the Road Traffic Simulation ``SUMO'' for educational Purposes.\n \n \n \n \n\n\n \n Krajzewicz, D.; Hartinger, M.; Hertkorn, G.; Mieth, P.; Rössel, C.; Zimmer, J.; and Wagner, P.\n\n\n \n\n\n\n In Traffic and Granular Flow (TGF), 2003. \n LIDO-Berichtsjahr=2004\n\n\n\n
\n\n\n\n \n \n \"UsingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2003b,\n  author = {Daniel Krajzewicz and Markus Hartinger and Georg Hertkorn and Peter\n\tMieth and Christian R\\"ossel and Julia Zimmer and Peter Wagner},\n  title = {Using the Road Traffic Simulation ``SUMO'' for educational Purposes},\n  booktitle = {Traffic and Granular Flow (TGF)},\n  year = {2003},\n  note = {LIDO-Berichtsjahr=2004},\n  abstract = {Since the year 2000, the Centre of Apllied Informatics and the Institute\n\tf?r Transport Research at the German Aerospace Centre devops a microscopic\n\troad traffic simulation package named &quot;SUMO&quot; - an acronym\n\tfor &quot;Simulation of Urban MObility&quot;. Meanwhile, the simulation\n\tis capable to deal with realistic scenarios such as large cities\n\tand is used for these purposes within the Institute?s projects. The\n\tidea was to support the traffic research community with a common\n\tplatform to test new ideas and models without the need to reimplement\n\ta framework that handles road data, vehicle routes, traffic light\n\tsteering etc. To achieve this goal, the simulation code is available\n\tas open source. Within this publication, we would like to demonstrate\n\thow most attributes of traffic flow can be simulated. This should\n\tbe mainly intersting for educational purposes.},\n  file = {:http\\://elib.dlr.de/6719/1/dkrajzew_TGF03Poster_SUMOEducation.pdf:URL},\n  keywords = {traffic simulation, road traffic, car following, microscopic, continous,\n\tmultimodal, open source, car-driver model, traffic research, education},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/6719/}\n}\n\n
\n
\n\n\n
\n Since the year 2000, the Centre of Apllied Informatics and the Institute f?r Transport Research at the German Aerospace Centre devops a microscopic road traffic simulation package named "SUMO" - an acronym for "Simulation of Urban MObility". Meanwhile, the simulation is capable to deal with realistic scenarios such as large cities and is used for these purposes within the Institute?s projects. The idea was to support the traffic research community with a common platform to test new ideas and models without the need to reimplement a framework that handles road data, vehicle routes, traffic light steering etc. To achieve this goal, the simulation code is available as open source. Within this publication, we would like to demonstrate how most attributes of traffic flow can be simulated. This should be mainly intersting for educational purposes.\n
\n\n\n
\n\n\n
\n \n\n \n \n \n \n \n \n The \"Simulation of Urban MObility\" package: An open source traffic simulation.\n \n \n \n \n\n\n \n Krajzewicz, D.; Hartinger, M.; Hertkorn, G.; Mieth, P.; Ringel, J.; Rössel, C.; and Wagner, P.\n\n\n \n\n\n\n In 2003 European Simulation and Modelling Conference, 2003. \n \n\n\n\n
\n\n\n\n \n \n \"ThePaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Krajzewicz2003a,\n  author = {Daniel Krajzewicz and Markus Hartinger and Georg Hertkorn and Peter\n\tMieth and Julia Ringel and Christian R\\"ossel and Peter Wagner},\n  title = {The "Simulation of Urban MObility" package: An open source traffic\n\tsimulation},\n  booktitle = {2003 European Simulation and Modelling Conference},\n  year = {2003},\n  abstract = {SUMO is the acronym for "Simulation of Urban MObility", an open source\n\tproject concerned with the development and usage of a traffic simulation.\n\tThe project is a part of our scientific work concerned with the verification\n\tof different microscopic models of traffic, and their comparison\n\t([1]). Further, the traffic science community often involves ideas\n\twhere each of them needs a traffic simulation to be validated. Over\n\tthe time, many more or less sophisticated simulations have been developed\n\tto do this job. They mostly stay unknown. This approach is not only\n\tvery inefficient as a traffic simulation has many things to regard;\n\talso, the results are often not replicable or at least hard to compare.\n\tWhen a common platform is supplied, such problems should not occur.\n\tWithin this publication, we would like to introduce our package to\n\tthe public in the hope to gain some further interest.},\n  journal = {Proceedings of the 2003 European Simulation and Modelling Conference},\n  keywords = {traffic simulation, road traffic, open source, car-driver model, traffic\n\tresearch},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/21385/}\n}\n\n
\n
\n\n\n
\n SUMO is the acronym for \"Simulation of Urban MObility\", an open source project concerned with the development and usage of a traffic simulation. The project is a part of our scientific work concerned with the verification of different microscopic models of traffic, and their comparison ([1]). Further, the traffic science community often involves ideas where each of them needs a traffic simulation to be validated. Over the time, many more or less sophisticated simulations have been developed to do this job. They mostly stay unknown. This approach is not only very inefficient as a traffic simulation has many things to regard; also, the results are often not replicable or at least hard to compare. When a common platform is supplied, such problems should not occur. Within this publication, we would like to introduce our package to the public in the hope to gain some further interest.\n
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\n \n\n \n \n \n \n \n \n Gestalten, Archetypen, Symbole und Signale: Herausforderungen an und Vorteile für die Modellierung.\n \n \n \n \n\n\n \n Krajzewicz, D.; and Wagner, P.\n\n\n \n\n\n\n In Burkhard, H.; Uthmann, T.; and Lindemann, G., editor(s), Modellierung und Simulation menschlichen Verhaltens, of Informatik-Bericht, pages 54–67, 2003. TU-Berlin\n LIDO-Berichtsjahr=2004, monographěrb1_1id=Nr. 163\n\n\n\n
\n\n\n\n \n \n \"Gestalten,Paper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Krajzewicz2003,\n  author = {Daniel Krajzewicz and Peter Wagner},\n  title = {Gestalten, Archetypen, Symbole und Signale: Herausforderungen an\n\tund Vorteile f\\"ur die Modellierung},\n  booktitle = {Modellierung und Simulation menschlichen Verhaltens},\n  year = {2003},\n  editor = {H.-D. Burkhard and T. Uthmann and G. Lindemann},\n  number = {163},\n  series = {Informatik-Bericht},\n  pages = {54--67},\n  publisher = {TU-Berlin},\n  note = {LIDO-Berichtsjahr=2004, monograph\\verb1_1id=Nr. 163},\n  abstract = {Die im Titel genannten, komplexen und abstrakten Gebilde der Psychologie\n\twurden bislang selten modelliert und formal beschrieben. Unter Betrachtung\n\tdes Themengebietes eines unserer Projekte - der Modellierung eines\n\tkognitiven Modells des Autofahrers - m?chten wir hier eine kurze\n\t?bersicht ?ber unsere Idee zu diesen Themen geben, Probleme aufdecken\n\tund einige Potentiale f?r die Modellierung der Kognition aufzeigen,\n\tdie einen einfachen Umgang mit diesen Strukturen erm?glichen und\n\tsich tlw. positiv auf die Ausf?hrungsgeschwindigkeiten von Simulationen\n\tauswirken. Zus?tzlich zeigen wir Modelle, die in unsere Arbeit aufgrund\n\tihrer hohen Ressourcenbeanspruchung, bedingt durch eine konnektionistischen\n\tHerangehensweise, nicht direkt einflie?en k?nnen.},\n  journal = {Modellierung und Simulation menschlichen Verhaltens},\n  keywords = {Fahrermodellierung, Kognition, Wahrnehmung, Simulation},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/6659/}\n}\n\n
\n
\n\n\n
\n Die im Titel genannten, komplexen und abstrakten Gebilde der Psychologie wurden bislang selten modelliert und formal beschrieben. Unter Betrachtung des Themengebietes eines unserer Projekte - der Modellierung eines kognitiven Modells des Autofahrers - m?chten wir hier eine kurze ?bersicht ?ber unsere Idee zu diesen Themen geben, Probleme aufdecken und einige Potentiale f?r die Modellierung der Kognition aufzeigen, die einen einfachen Umgang mit diesen Strukturen erm?glichen und sich tlw. positiv auf die Ausf?hrungsgeschwindigkeiten von Simulationen auswirken. Zus?tzlich zeigen wir Modelle, die in unsere Arbeit aufgrund ihrer hohen Ressourcenbeanspruchung, bedingt durch eine konnektionistischen Herangehensweise, nicht direkt einflie?en k?nnen.\n
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\n  \n 2002\n \n \n (5)\n \n \n
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\n \n\n \n \n \n \n \n \n Towards Benchmarking Microscopic Traffic Flow Models.\n \n \n \n \n\n\n \n Brockfeld, E.; Kühne, R.; and Wagner, P.\n\n\n \n\n\n\n In Networks for Mobility, International Symposium, volume I, pages 321–331, 2002. \n LIDO-Berichtsjahr=2003,\n\n\n\n
\n\n\n\n \n \n \"TowardsPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Brockfeld2002a,\n  author = {Elmar Brockfeld and Reinhart K\\"uhne and Peter Wagner},\n  title = {Towards Benchmarking Microscopic Traffic Flow Models},\n  booktitle = {Networks for Mobility, International Symposium},\n  year = {2002},\n  volume = {I},\n  pages = {321--331},\n  note = { LIDO-Berichtsjahr=2003,},\n  journal = {Proceedings of Networks for Mobility},\n  keywords = {microscopic simulation, benchmarking, traffic flow models, DLR/TS/VM,\n\tmodel calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/6506/}\n}\n\n
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\n \n\n \n \n \n \n \n \n Testing traffic flow models.\n \n \n \n \n\n\n \n Brockfeld, E.; and Wagner, P.\n\n\n \n\n\n\n In Computional Physics Conference, 2002. \n LIDO-Berichtsjahr=2003,\n\n\n\n
\n\n\n\n \n \n \"TestingPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Brockfeld2002,\n  author = {Elmar Brockfeld and Peter Wagner},\n  title = {Testing traffic flow models},\n  booktitle = {Computional Physics Conference},\n  year = {2002},\n  note = { LIDO-Berichtsjahr=2003,},\n  journal = {Proceedings of the Computional Physics Conference},\n  keywords = {DLR/TS/VM, model calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/6505/}\n}\n\n
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\n \n\n \n \n \n \n \n \n SUMO (Simulation of Urban MObility) - an open-source traffic simulation.\n \n \n \n \n\n\n \n Krajzewicz, D.; Hertkorn, G.; Rössel, C.; and Wagner, P.\n\n\n \n\n\n\n In Al-Akaidi, A., editor(s), 4th Middle East Symposium on Simulation and Modelling, pages 183–187, 2002. \n LIDO-Berichtsjahr=2004,\n\n\n\n
\n\n\n\n \n \n \"SUMOPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Krajzewicz2002a,\n  author = {Daniel Krajzewicz and Georg Hertkorn and C. R\\"ossel and Peter Wagner},\n  title = {SUMO (Simulation of Urban MObility) - an open-source traffic simulation},\n  booktitle = {4th Middle East Symposium on Simulation and Modelling},\n  year = {2002},\n  editor = {A. Al-Akaidi},\n  pages = {183--187},\n  note = { LIDO-Berichtsjahr=2004,},\n  abstract = {As no exact model of traffic flow exists due to its high complexity\n\tand chaotic organisation, researchers mainly try to predict traffic\n\tusing simulations. Within this field, many simulation packages exist\n\tand differ in their software architecture paradigm as well as in\n\tthe models that describe traffic itself. We will introduce yet another\n\tsystem which, in contrast to most of the other simulation software\n\tpackages, is available as on open-source programm and may therfore\n\tbe extended in order to fit a researcher?s own needs and also be\n\tused as a reference testbed for new traffic models.},\n  journal = {Proceedings of the 4th Middle East Symposium on Simulation and Modelling\n\t(MESM20002)},\n  keywords = {traffic simulation, microscopic, continous, multimodal, open source,\n\tcar-driver model, traffic research, road traffic},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/6661/}\n}\n\n
\n
\n\n\n
\n As no exact model of traffic flow exists due to its high complexity and chaotic organisation, researchers mainly try to predict traffic using simulations. Within this field, many simulation packages exist and differ in their software architecture paradigm as well as in the models that describe traffic itself. We will introduce yet another system which, in contrast to most of the other simulation software packages, is available as on open-source programm and may therfore be extended in order to fit a researcher?s own needs and also be used as a reference testbed for new traffic models.\n
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\n \n\n \n \n \n \n \n \n An Example of Microscopic Car Models Validation using the open source Traffic Simulation SUMO.\n \n \n \n \n\n\n \n Krajzewicz, D.; Hertkorn, G.; Rössel, C.; and Wagner, P.\n\n\n \n\n\n\n In 14th European Simulation Symposium, volume Jahrgang 2002, of SCS European Publishing House, pages 318–322, 2002. \n LIDO-Berichtsjahr=2004,\n\n\n\n
\n\n\n\n \n \n \"AnPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Krajzewicz2002b,\n  author = {Daniel Krajzewicz and Georg Hertkorn and C. R\\"ossel and Peter Wagner},\n  title = {An Example of Microscopic Car Models Validation using the open source\n\tTraffic Simulation SUMO},\n  booktitle = {14th European Simulation Symposium},\n  year = {2002},\n  volume = {Jahrgang 2002},\n  series = {SCS European Publishing House},\n  pages = {318--322},\n  note = { LIDO-Berichtsjahr=2004,},\n  abstract = {In SUMO (Simulation of Urban MObility; An open-source traffic simulation)\n\twe presented an open source simulation software for road traffic\n\tsimulation. Now we show one possible field of application, the validation\n\tof microscopic car/car-driver models. Our motivation is to awake\n\tthe interest in using and extending the software, so this report\n\twill describe the software?s usability but will not go into depth\n\tin interpreting the results.},\n  journal = {Proceedings of Simulation in Industry, 14th European Simulation Symposium},\n  keywords = {traffic simulation, road traffic, car following, model validation,\n\tmicroscopic, continuous, multimodal, open source, car-driver-model,\n\ttraffic research, validation, calibration},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/6657/}\n}\n\n
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\n In SUMO (Simulation of Urban MObility; An open-source traffic simulation) we presented an open source simulation software for road traffic simulation. Now we show one possible field of application, the validation of microscopic car/car-driver models. Our motivation is to awake the interest in using and extending the software, so this report will describe the software?s usability but will not go into depth in interpreting the results.\n
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\n \n\n \n \n \n \n \n \n ACME (A Common Mental Environment)-Driver - A Cognitive Car Driver Model.\n \n \n \n \n\n\n \n Krajzewicz, D.; and Wagner, P.\n\n\n \n\n\n\n In Amborski, K.; and Meuth, H., editor(s), 16th Simulation Mulitconference \"Modelling and Simulation 2002\", pages 689–693, 2002. \n LIDO-Berichtsjahr=2004,\n\n\n\n
\n\n\n\n \n \n \"ACMEPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
\n
@INPROCEEDINGS{Krajzewicz2002,\n  author = {Daniel Krajzewicz and Peter Wagner},\n  title = {ACME (A Common Mental Environment)-Driver - A Cognitive Car Driver\n\tModel},\n  booktitle = {16th Simulation Mulitconference "Modelling and Simulation 2002"},\n  year = {2002},\n  editor = {Krzysztof Amborski and Hermann Meuth},\n  pages = {689--693},\n  note = { LIDO-Berichtsjahr=2004,},\n  abstract = {When working on large-scale traffic observation projects very often\n\tsimulations and therefore, models of the behavior of the molecular\n\tsimulation elements (the car-driver-units) are needed. Most of the\n\tmodels for traffic simulations are based on approximations of statistical\n\treal-world data. While fast in computation, they sometimes fail to\n\tshow real-world phenomena. Our project uses a different approach.\n\tWe try to model a human driver?s behaviour by modelling her or his\n\tcognitive information processing in a simulated environment. While\n\tseveral papers about experiments concerning single phenomena exist,\n\tthis approach is meant to describe the wohle information processing\n\tof a driver on a high abstraction level. This paper will show some\n\ttopics of interest for a human cognition model. Possible applications\n\tare listed, too.},\n  journal = {Proceedings of the 16th Simulation Multiconference "Modelling and\n\tSimulation 2002"},\n  keywords = {cognitive modelling, artificial interlligence, psychology, simulation,\n\ttraffic simulation, short term memory, reception},\n  owner = {Daniel},\n  timestamp = {2011.12.02},\n  url = {http://elib.dlr.de/6658/}\n}\n\n
\n
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\n When working on large-scale traffic observation projects very often simulations and therefore, models of the behavior of the molecular simulation elements (the car-driver-units) are needed. Most of the models for traffic simulations are based on approximations of statistical real-world data. While fast in computation, they sometimes fail to show real-world phenomena. Our project uses a different approach. We try to model a human driver?s behaviour by modelling her or his cognitive information processing in a simulated environment. While several papers about experiments concerning single phenomena exist, this approach is meant to describe the wohle information processing of a driver on a high abstraction level. This paper will show some topics of interest for a human cognition model. Possible applications are listed, too.\n
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\n  \n 2001\n \n \n (2)\n \n \n
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\n \n\n \n \n \n \n \n \n Optimizing traffic lights in a cellular automaton model for city traffic.\n \n \n \n \n\n\n \n Barlovic, R.; Brockfeld, E.; Schadschneider, A.; and Schreckenberg, M.\n\n\n \n\n\n\n Physical Review E, 64(64, 056132): 056132. Oct 2001.\n LIDO-Berichtsjahr=2003,\n\n\n\n
\n\n\n\n \n \n \"OptimizingPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n  \n \n 8 downloads\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@ARTICLE{Barlovic2001,\n  author = {R. Barlovic and Elmar Brockfeld and A. Schadschneider and M. Schreckenberg},\n  title = {Optimizing traffic lights in a cellular automaton model for city\n\ttraffic},\n  journal = {Physical Review E},\n  year = {2001},\n  volume = {64},\n  pages = {056132},\n  number = {64, 056132},\n  month = {Oct},\n  note = { LIDO-Berichtsjahr=2003,},\n  abstract = {We study the impact of global traffic light control strategies in\n\ta recently proposed cellular automaton model for vehicular traffic\n\tin city networks. The model combines basic ideas of the Biham-Middleton-Levine\n\tmodel for city traffic and the Nagel-Schreckenberg model for highway\n\ttraffic. The city network has a simple square lattice geometry. All\n\tstreets and intersections are treated equally, i.e., there are no\n\tdominant streets. Starting from a simple synchronized strategy, we\n\tshow that the capacity of the network strongly depends on the cycle\n\ttimes of the traffic lights. Moreover, we point out that the optimal\n\ttime periods are determined by the geometric characteristics of the\n\tnetwork, i.e., the distance between the intersections. In the case\n\tof synchronized traffic lights, the derivation of the optimal cycle\n\ttimes in the network can be reduced to a simpler problem, the flow\n\toptimization of a single street with one traffic light operating\n\tas a bottleneck. In order to obtain an enhanced throughput in the\n\tmodel, improved global strategies are tested, e.g., green wave and\n\trandom switching strategies, which lead to surprising results.},\n  doi = {10.1103/PhysRevE.64.056132},\n  keywords = {DLR/TS/VM},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30},\n  url = {http://elib.dlr.de/6570/}\n}\n\n
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\n We study the impact of global traffic light control strategies in a recently proposed cellular automaton model for vehicular traffic in city networks. The model combines basic ideas of the Biham-Middleton-Levine model for city traffic and the Nagel-Schreckenberg model for highway traffic. The city network has a simple square lattice geometry. All streets and intersections are treated equally, i.e., there are no dominant streets. Starting from a simple synchronized strategy, we show that the capacity of the network strongly depends on the cycle times of the traffic lights. Moreover, we point out that the optimal time periods are determined by the geometric characteristics of the network, i.e., the distance between the intersections. In the case of synchronized traffic lights, the derivation of the optimal cycle times in the network can be reduced to a simpler problem, the flow optimization of a single street with one traffic light operating as a bottleneck. In order to obtain an enhanced throughput in the model, improved global strategies are tested, e.g., green wave and random switching strategies, which lead to surprising results.\n
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\n \n\n \n \n \n \n \n Towards the development of intelligent transportation systems.\n \n \n \n\n\n \n Figueiredo, L.; Jesus, I.; Machado, J.; Ferreira, J.; and Martins de Carvalho, J.\n\n\n \n\n\n\n In Intelligent Transportation Systems, 2001. Proceedings. 2001 IEEE, pages 1206 -1211, 2001. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Figueiredo2001,\n  author = {Figueiredo, L. and Jesus, I. and Machado, J.A.T. and Ferreira, J.R.\n\tand Martins de Carvalho, J.L.},\n  title = {Towards the development of intelligent transportation systems},\n  booktitle = {Intelligent Transportation Systems, 2001. Proceedings. 2001 IEEE},\n  year = {2001},\n  pages = {1206 -1211},\n  __markedentry = {[dkrajzew:6]},\n  abstract = {This paper presents a review of the state of the art on intelligent\n\ttransportation systems. ITS involves a large number of research areas\n\tand, therefore, this paper focus on those we believe to be the most\n\trelevant. The main purpose is to study the achievements attained\n\tin the last years and to give an overview of possible directions\n\ttowards future research},\n  doi = {10.1109/ITSC.2001.948835},\n  keywords = {intelligent transportation system development;automated highways;reviews;},\n  owner = {dkrajzew},\n  timestamp = {2012.01.26}\n}\n\n
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\n This paper presents a review of the state of the art on intelligent transportation systems. ITS involves a large number of research areas and, therefore, this paper focus on those we believe to be the most relevant. The main purpose is to study the achievements attained in the last years and to give an overview of possible directions towards future research\n
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\n  \n 2000\n \n \n (3)\n \n \n
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\n \n\n \n \n \n \n \n \n Statistical physics of vehicular traffic and some related systems.\n \n \n \n \n\n\n \n Chowdhury, D.; Santen, L.; and Schadschneider, A.\n\n\n \n\n\n\n Physics Reports, 329(4-6): 199 - 329. 2000.\n \n\n\n\n
\n\n\n\n \n \n \"StatisticalPaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@ARTICLE{Chowdhury2000,\n  author = {Debashish Chowdhury and Ludger Santen and Andreas Schadschneider},\n  title = {Statistical physics of vehicular traffic and some related systems},\n  journal = {Physics Reports},\n  year = {2000},\n  volume = {329},\n  pages = {199 - 329},\n  number = {4-6},\n  doi = {10.1016/S0370-1573(99)00117-9},\n  issn = {0370-1573},\n  keywords = {Cellular automata, Models},\n  owner = {dkrajzew},\n  timestamp = {2011.09.19},\n  url = {http://arxiv.org/abs/cond-mat/0007053}\n}\n\n
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\n \n\n \n \n \n \n \n \n Congested Traffic States in Empirical Observations and Microscopic Simulations.\n \n \n \n \n\n\n \n Treiber, M.; Hennecke, A.; and Helbing, D.\n\n\n \n\n\n\n PHYSICAL REVIEW E, 62: 1805. 2000.\n \n\n\n\n
\n\n\n\n \n \n \"CongestedPaper\n  \n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n\n\n\n
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@ARTICLE{Treiber2000,\n  author = {Martin Treiber and Ansgar Hennecke and Dirk Helbing},\n  title = {Congested Traffic States in Empirical Observations and Microscopic\n\tSimulations},\n  journal = {PHYSICAL REVIEW E},\n  year = {2000},\n  volume = {62},\n  pages = {1805},\n  __markedentry = {[dkrajzew:6]},\n  file = {:http\\://arxiv.org/pdf/cond-mat/0002177v2.pdf:URL},\n  owner = {dkrajzew},\n  timestamp = {2012.01.26},\n  url = {doi:10.1103/PhysRevE.62.1805}\n}\n\n
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\n \n\n \n \n \n \n \n Vehicle fuel consumption and emission estimation in environment-adaptive driving with or without inter-vehicle communications.\n \n \n \n\n\n \n Widodo, S.; Hasegawa, T.; and Tsugawa, S.\n\n\n \n\n\n\n In Intelligent Vehicles Symposium, 2000. IV 2000. Proceedings of the IEEE, pages 382 -386, 2000. \n \n\n\n\n
\n\n\n\n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n  \n \n abstract \n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n\n\n\n
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@INPROCEEDINGS{Widodo2000,\n  author = {Widodo, S. and Hasegawa, T. and Tsugawa, S.},\n  title = {Vehicle fuel consumption and emission estimation in environment-adaptive\n\tdriving with or without inter-vehicle communications},\n  booktitle = {Intelligent Vehicles Symposium, 2000. IV 2000. Proceedings of the\n\tIEEE},\n  year = {2000},\n  pages = {382 -386},\n  __markedentry = {[dkrajzew:6]},\n  abstract = {In this paper, the vehicle fuel consumption and emission rates of\n\tenvironment-adaptive driving with or without inter-vehicle communications\n\tare estimated using an autonomous running traffic flow simulator.\n\tIn this study, a microscopic fuel consumption and emission model\n\tis used. Simulation results show that environment-adaptive driving\n\tcan reduce both of the average fuel consumption and vehicle emission.\n\tIt also shows that inter-vehicle communications can improve these\n\timpacts under high vehicle densities and long traffic light cycle\n\ttimes},\n  doi = {10.1109/IVS.2000.898373},\n  keywords = {autonomous running traffic flow simulator;environment-adaptive driving;high\n\tvehicle densities;inter-vehicle communications;long traffic light\n\tcycle times;microscopic model;vehicle emission estimation;vehicle\n\tfuel consumption estimation;air pollution;automated highways;environmental\n\tfactors;mobile communication;road vehicles;},\n  owner = {dkrajzew},\n  timestamp = {2012.01.26}\n}\n\n
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\n In this paper, the vehicle fuel consumption and emission rates of environment-adaptive driving with or without inter-vehicle communications are estimated using an autonomous running traffic flow simulator. In this study, a microscopic fuel consumption and emission model is used. Simulation results show that environment-adaptive driving can reduce both of the average fuel consumption and vehicle emission. It also shows that inter-vehicle communications can improve these impacts under high vehicle densities and long traffic light cycle times\n
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\n  \n 1999\n \n \n (2)\n \n \n
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\n \n\n \n \n \n \n \n Simulation-Based Traffic Assignment – Computing User Equilibria in Large Street Networks.\n \n \n \n\n\n \n Gawron, C.\n\n\n \n\n\n\n Ph.D. Thesis, Universität zu Köln, 1999.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@PHDTHESIS{Gawron1999,\n  author = {Gawron, Christian},\n  title = {Simulation-Based Traffic Assignment -- Computing User Equilibria\n\tin Large Street Networks},\n  school = {Universit\\"{a}t zu K\\"{o}ln},\n  year = {1999},\n  citeulike-article-id = {8937803},\n  file = {:https\\://sumo.dlr.de/pdf/GawronDiss.pdf:URL},\n  institution = {Informatik, Universit\\"{a}t zu K\\"{o}ln},\n  keywords = {equilibrium, learning, simulation, sumo, Assignment, ZAIK},\n  number = {366},\n  owner = {dkrajzew},\n  pages = {113},\n  posted-at = {2011-03-04 07:57:16},\n  priority = {2},\n  timestamp = {2011.09.19}\n}\n\n
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\n \n\n \n \n \n \n \n Some Observations of Highway Traffic in Long Queues.\n \n \n \n\n\n \n Smilowitz, K. R.; Smilowitz, K. R.; Daganzo, C. F.; Daganzo, C. F.; Cassidy, M. J.; Cassidy, M. J.; Bertini, R. L.; and Bertini, R. L.\n\n\n \n\n\n\n Transportation Research Records, 1678: 225-233. 1999.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@ARTICLE{Smilowitz1999,\n  author = {Karen R. Smilowitz and Karen R. Smilowitz and Carlos F. Daganzo and\n\tCarlos F. Daganzo and Michael J. Cassidy and Michael J. Cassidy and\n\tRobert L. Bertini and Robert L. Bertini},\n  title = {Some Observations of Highway Traffic in Long Queues},\n  journal = {Transportation Research Records},\n  year = {1999},\n  volume = {1678},\n  pages = {225-233},\n  keywords = {real-world data, model calibration},\n  owner = {dkrajzew},\n  timestamp = {2011.09.30}\n}\n\n
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\n  \n 1998\n \n \n (1)\n \n \n
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\n \n\n \n \n \n \n \n Microscopic Modeling of Traffic Flow: Investigation of Collision Free Vehicle Dynamics.\n \n \n \n\n\n \n Krau�, S.\n\n\n \n\n\n\n Ph.D. Thesis, Universität zu Köln, 1998.\n \n\n\n\n
\n\n\n\n \n\n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n\n\n\n
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@PHDTHESIS{Krauss1998,\n  author = {Stefan Krau�},\n  title = {Microscopic Modeling of Traffic Flow: Investigation of Collision\n\tFree Vehicle Dynamics},\n  school = {Universit\\"{a}t zu K\\"{o}ln},\n  year = {1998},\n  file = {:https\\://sumo.dlr.de/pdf/KraussDiss.pdf:URL},\n  institution = {Mathematisches Institut, Universit\\"at zu K\\"oln},\n  keywords = {highway traffic, interacting random processes, statistical mechanics\n\ttype modells, statistical processes; 60K30, 60K35, 90B20, Models,\n\tZAIK},\n  number = {319},\n  owner = {dkrajzew},\n  pages = {116},\n  timestamp = {2011.09.19}\n}\n\n
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\n  \n 1997\n \n \n (1)\n \n \n
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\n \n\n \n \n \n \n \n \n Metastable states in a microscopic model of traffic flow .\n \n \n \n \n\n\n \n Krauss, S.; Wagner, P.; and Gawron, C.\n\n\n \n\n\n\n Phys. Rev. E, 55: 5597–5602. May 1997.\n \n\n\n\n
\n\n\n\n \n \n \"MetastablePaper\n  \n \n\n \n \n doi\n  \n \n\n \n link\n  \n \n\n bibtex\n \n\n \n\n \n  \n \n 1 download\n \n \n\n \n \n \n \n \n \n \n\n  \n \n \n \n \n \n \n\n\n\n
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@ARTICLE{Krauss1997,\n  author = {Krauss, S. and Wagner, P. and Gawron, C.},\n  title = {Metastable states in a microscopic model of traffic flow },\n  journal = {Phys. Rev. E},\n  year = {1997},\n  volume = {55},\n  pages = {5597--5602},\n  month = {May},\n  doi = {10.1103/PhysRevE.55.5597},\n  file = {:https\\://sumo.dlr.de/pdf/sk.pdf:URL},\n  issue = {5},\n  keywords = {Models, ZAIK},\n  owner = {dkrajzew},\n  publisher = {American Physical Society},\n  timestamp = {2011.09.19},\n  url = {http://link.aps.org/doi/10.1103/PhysRevE.55.5597}\n}\n\n
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