Knowledge of the traffic state is a prerequisite for reliable traffic information and for a network wide traffic control. The spatially and temporally complete automatic acquisition of the traffic conditions is desirable, however for economical and technical reasons it is not possible. The paper presents a new approach in the field of traffic data acquisition, whereby public transport vehicles should carry a sensor device which can observe the oncoming traffic by the use of so-called floating car observer (FCO) sensor devices. Such equipped vehicles are then underway as FCOs and can gather the traffic state throughout the public transport route network. The traffic state can be derived from observation results. A main objective of the project VAGABUND is the development of a low-cost sensor module for the detection of the oncoming traffic from bus or tram. For the most promising techniques laser scanner, fixed single beam LIDAR, ultrasonics, and video camera with synchronised infra-red flashes, functional models have been developed and evaluated with the help of an event discrete simulation tool. First simulation runs indicate the suitability of all these examined techniques under ideal conditions of simulation in general, although, differences in the precision of speed measurement of oncoming vehicles are expected. The paper focuses on the simulation based proof of concept in terms of the development of a suitable FCO sensor device from conceptual and technological design.


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    Title :

    Using simulation for designing floating car observers


    Additional title:

    Benutzung der Simulation zum Entwurf von im Verkehr fließenden Autobeobachtern


    Contributors:


    Publication date :

    2007


    Size :

    13 Seiten, 9 Bilder, 4 Quellen



    Type of media :

    Conference paper


    Type of material :

    Print


    Language :

    English




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