A computer program to detect vehicular incidents which occur on urban freeways operating at low volume conditions was developed, tested and evaluated. The type of incidents to be detected are those vehicles which entered but for some reason did not pass through a defined study section. The algorithm can operate in realtime and is based on an individual vehicle input-output process. It was tested on traffic data from a four-lane section of freeway in Houston, Texas. The algorithm's performance was evaluated over a wide range of traffic volumes (100 to 1200 vehicles per hour) and three different detector spacings - 500, 1000 and 1500 feet.


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    Title :

    Automatic Detection of Freeway Incidents during Low Volume Conditions


    Contributors:
    D. B. Fambro (author) / G. P. Ritch (author)

    Publication date :

    1979


    Size :

    73 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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