Truck rollover accidents on urban freeways occur more frequently at highway interchanges, particularly on curved exit ramps, than at any other location. A truck may rollover if the lateral acceleration imposed upon it as it travels around a curve of a certain radius and superelevation is greater than allowable, given its loading condition. This report evaluates a Truck-Activated Rollover Warning System (TARWS). The TARWS uses truck classification technology to theoretically detect and warn truck drivers when their truck speed exceeds the safe operating speed. A specific site was chosen, in California because of its high frequency of rollover type accidents. The TARWS was installed and a before/after analysis was conducted to determine the effectiveness of the system. This report provides information on the design, its costs and its cost-effectiveness.


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    Title :

    Evaluation of a Truck-Activated Rollover Warning System


    Contributors:
    R. S. Bola (author)

    Publication date :

    1999


    Size :

    78 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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