The bridge weigh-in-motion concept which was originally designed to acquire and then process the weight of one vehicle at a time in a portable, manned mode, was extended to simultaneously acquire and process data on several vehicles in a permanent, unattended mode. All aspects of the operation were designed to function automatically, including system start-up, data summarization, and system file maintenance. Low cost piezoelectric cables were investigated for use as axle detectors to obtain vehicle velocity and axle spacings. A classification scheme using vehicle axle spacings and axle weights was developed that separates vehicles into the thirteen classes defined by the Traffic Monitoring Guide. Recommendations are made to extend the system to acquire vehicle weight data on urban freeway bridges with three or more lanes of traffic.


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    Title :

    Implementation of a Continuous Fixed Site Bridge (WIM) Weigh-In-Motion) Operation


    Contributors:

    Publication date :

    1986


    Size :

    52 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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