The paper presents an algorithm for matching individual vehicles measured at a freeway detector with the vehicles' corresponding measurements taken earlier at another detector located upstream. Although this algorithm is potentially compatible with many vehicle detector technologies, the paper illustrates the method using existing dual-loop-detectors to measure vehicle lengths. This detector technology has seen widespread deployment for velocity measurement. Since the detectors were not developed to measure vehicle length, these measurements can include significant errors. To overcome this problem, the algorithm exploits drivers' tendencies to retain their positions within dense platoons. The otherwise complicated task of vehicle reidentification is carried-out by matching these platoons rather than individual vehicles. Of course once a vehicle has been matched across neighboring detector stations, the difference in its arrival time at each station defines the vehicle's travel time on the intervening segment. Findings from an application of the algorithm over a 1/3 mile long segment are presented herein and they indicate that a sufficient number of vehicles can be matched for the purpose of traffic surveillance. As such, the algorithm extracts travel time data without requiring the deployment of new detector technologies. In addition to the immediate impacts on traffic monitoring, the work provides a means to quantify the potential benefits of emerging detector technologies that promise to extract more detailed information from individual vehicles.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Vehicle reidentification and travel time measurement. I. Congested freeways


    Beteiligte:
    Coifman, B. (Autor:in) / Cassidy, M. (Autor:in)


    Erscheinungsdatum :

    01.01.2001


    Format / Umfang :

    573301 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




    Improved Vehicle Reidentification and Travel Time Measurement on Congested Freeways

    Coifman, B. / Ergueta, E. | British Library Online Contents | 2003


    Vehicle Reidentification and Travel Time Measurement, Part I: Congested Freeways

    Coifman, B. / Cassidy, M. / IEEE | British Library Conference Proceedings | 2001



    Experienced travel time prediction for congested freeways

    Yildirimoglu, Mehmet | Online Contents | 2013