Use of the AASHTO DARWin-ME mechanistic–empirical pavement design software requires that truck loading data be provided in the form of normalized axle load frequency distributions (spectra). Default axle load frequency spectra are provided in the software. However, these default distributions were derived from national data and may not suit the needs of individual states. This study analyzed the Florida Department of Transportation's substantial database of truck weight data taken from its network of high-quality weigh-in-motion stations to determine whether site- or state-specific axle load spectra could be generated and how they should be applied. Several analytical procedures were developed and applied to the data, including analysis of variance and cluster analysis. The results of this work were used to develop Level 2 axle load spectra that could be applied to design sections. This paper presents detailed information about the traffic data requirements of the new guide, the process followed for deriving Florida's input values, and the resulting recommended values.


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    Titel :

    Generating Site-Specific Axle Load Factors for the Mechanistic–Empirical Pavement Design Guide


    Weitere Titelangaben:

    Transportation Research Record


    Beteiligte:
    Cunagin, Wiley (Autor:in) / Reel, Richard L. (Autor:in) / Ghanim, Mohammad S. (Autor:in) / Roark, Drew (Autor:in) / Leggett, Michael (Autor:in)


    Erscheinungsdatum :

    2013-01-01




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch