The modular crash cushion of empty modified 55-gallon oil drums which is in field use has proven to be highly successful, especially in headon collisions, however, it does have a potential danger zone near the back. When impacting in this danger zone, a vehicle can pocket and contact the rigid obstacle before losing a significant amount of energy. It is evident that, in this danger zone, redirection would normally be more desirable than complete arrestment. A set of steel drums wrapped with a flexbeam of W-section guardrail was added to the rear portion of the modular crash cushion to prevent pocketing of impacting vehicles. Longitudinal cables on each side of the front portion of the crash cushion serve to redirect vehicles hitting the sides. Drawings of the revised structure incorporating these features show details for construction. (Author)


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    Title :

    Flexbeam Redirectional System for the Modular Crash Cushion


    Contributors:
    G. G. Hayes (author) / D. L. Ivey (author) / T. J. Hirsch (author)

    Publication date :

    1970


    Size :

    47 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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