In this paper, we present algorithms that use transit vehicles as probes for determining traffic speeds along freeways and other primary arterials. We describe a system of "virtual" probe sensors that measure transit vehicle speeds using automatic vehicle location system (AVL) tracking data. Examples showing the correlation between probe data and inductance loop spend trap data are presented. In addition, virtual sensor data, produced using transit vehicles as probes, is compared with inductance loop speeds during incidents identified in the DOT incident log. These comparisons demonstrate the effectiveness of virtual sensors based on using transit vehicles as traffic probes.


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    Title :

    Virtual speed sensors using transit vehicles as traffic probes


    Contributors:
    Dailey, D.J. (author) / Cathey, F.W. (author)


    Publication date :

    2002-01-01


    Size :

    316497 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    VIRTUAL SPEED SENSORS USING TRANSIT VEHICLES AS TRAFFIC PROBES

    Dailey, D. J. / Cathey, F. W. / IEEE | British Library Conference Proceedings | 2002


    Transit Vehicles as Traffic Probe Sensors

    Cathey, F. W. / Dailey, D. J. | Transportation Research Record | 2002


    Transit vehicles as traffic probe sensors

    Cathey, F.W. / Dailey, D.J. | IEEE | 2001


    Transit Vehicles as Traffic Probe Sensors

    Cathey, F.W. | Online Contents | 2002


    Transit Vehicles as Traffic Probe Sensors

    Cathey, F. W. / Dailey, D. J. / Transportation Research Board | British Library Conference Proceedings | 2002