During the period, July 1993 through November 1995, the U.S. Department of Transportation , Research and Special Programs Administration, John A. Volpe National Transportation Systems Center (Volpe Center), Acoustics Facility. This report also presents the results of the study, including the measurement, data reduction and analysis procedures used to develop the Data Base. It discusses data for constant-flow and interrupted-flow roadway traffic, and data related to vehicle subsource heights. This report also presents the statistical methodology used to establish the Data Base for the FHWA TNM. Sound level regressions are presented as a function of several parameters, including vehicle speed, vehicle type, one-third octave-band frequency, roadway pavement type, roadway grade, traffic-flow condition and vehicle subsource height.


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    Title :

    Development of National Reference Energy Mean Emission Levels for the FHWA Traffic Noise Model (FHWA TNM (Trade Name)), Version 1.0


    Contributors:
    G. G. Fleming (author) / A. S. Rapoza (author) / C. S. Y. Lee (author)

    Publication date :

    1995


    Size :

    445 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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