"TRB Special Report 323, In-Service Performance Evaluation of Guardrail End Treatments, develops a research design for evaluating the in-service performance of guardrail end treatments and other roadside safety devices and identifies the data required to do so. Given the substantial data requirements and methodological challenges of conducting successful evaluations of particular end treatments, the committee concludes that state highway agencies will require more information about the benefits, costs, and practicality of routine in-service evaluation of end treatments in general before deciding to undertake new data collection and analysis programs necessary to carry out more challenging analyses. The committee recommends research to advance practice and test the feasibility of and costs associated with more complex evaluations. It also recommends research to examine whether procedures for testing the performance of devices should be altered"--Provided by publisher

    Summary: Study charge and origin -- Committee task -- Objectives of in-service evaluation -- Evaluation methods -- Organization of the report -- Methods of measuring performance: Comparative evaluations -- Descriptive evaluations -- Nationally coordinated evaluation research: Evaluation objectives -- Sources for evaluation procedures -- Validating crash test procedures -- Evaluation methods for routine highway agency use -- Impact of design, installation, and maintenance practices on performance -- Planning and organization -- Annex 3-1: summary of procedural guides to in-service evaluation of roadside safety devices -- Routine in-service evaluation of roadside devices -- Objectives of routine evaluations -- Obstacles to evaluation -- Strengthening highway agency capacity to conduct evaluations -- Conclusions and recommendation


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    Titel :

    In-service performance evaluation of guardrail end treatments




    Erscheinungsdatum :

    2018


    Format / Umfang :

    x, 133 Seiten


    Anmerkungen:

    Illustrationen
    Literaturangaben



    Medientyp :

    Buch


    Format :

    Print


    Sprache :

    Englisch



    Klassifikation :

    BKL:    55.84 Straßenverkehr
    DDC:    625.7/95




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