This study is directed toward developing the most practical measurement technique for measuring wet-pavement friction for road sections other than the straight, level portions currently measured. The measurement system must be capable of operating at traffic speeds and not interfere with normal traffic flow. The equipment should not be overly complex, should have its own watering system, its own data collection system and, most importantly, be compatible and correlatable with surface friction testers in current use. This study has demonstrated that measurements on nontangent sections can be conducted with an ASTM E-274 skid trailer when it accurately measures both the dynamic longitudinal and vertical forces on the test wheel during locked wheel tests. It has been found that the limit of performance of an E-274 system is approximately + or - 0.35 g lateral acceleration in the horizontal plane of the test trailer. This is Volume II of a three-volume report.


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    Title :

    Pavement Friction Measurements on Nontangent Sections of Roadways. Volume 2. Comprehensive Report


    Contributors:
    R. A. Zimmer (author) / R. D. Tonda (author)

    Publication date :

    1983


    Size :

    98 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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