Advanced traffic management has used variable speed limit (VSL) systems to control traffic on freeways and urban arterial roads. A VSL system is expected to detect incidents and take measures to carry out any or all of the following: avoid accidents, postpone or alleviate congestion by providing warning messages, and harmonize traffic by reducing speed differences between vehicles. Methods for assessing two features of VSL systems, namely, incident detection and warning efficiency, are presented in this paper. The algorithm for warnings relies on incident detection. Therefore, the quality of the system's incident detection and warning effects need to be assessed separately. For the purpose of evaluating incident detection, the traffic state was reconstructed, discretized, and compared with the message signs of the VSL. The warning efficiency of the system was assessed by generating virtual vehicle trajectories and determining whether a driver experienced adequate warning. Scenarios for message signs and their influence on traffic safety were identified according to the distance of the warning from the tail of the congestion. Weightings for detections and missed detections based on the different scenarios were developed. A quality evaluation method was then used to grade the levels of the system in their incident detection and warning efficiency. The presented method was tested for the VSL system on Autobahn A99 near Munich, Germany.


    Zugriff

    Download

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Quality Evaluation Method for Variable Speed Limit Systems


    Untertitel :

    Incident Detection and Warning Potential


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:


    Erscheinungsdatum :

    2015-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    Evaluation of Variable Speed Limit under Connected Vehicle environment

    Lee, Joyoung / Park, Byungkyu Brian | IEEE | 2013


    Dynamic variable speed limit control method

    ZHANG LEI | Europäisches Patentamt | 2020

    Freier Zugriff

    Variable speed limit: an overview

    Khondaker, B | Online Contents | 2015


    Variable speed limit: an overview

    Khondaker, B. / Kattan, L. | Taylor & Francis Verlag | 2015