Field evaluations of a wayside horn at at [sic] a highway-railroad grade crossing.

Federal Railroad Administration, Office of Research and Development, Washington, D.C.Mode of access: Internet.Author corporate affiliation: Transportation Department, Research and Special Programs Administration, Washington, D.C.Report covers the period April 1994 - May 1997Subject code: CDJISubject code: DNBSubject code: DVGISubject code: HBDHSubject code: NHSSubject code: WU*NH

Development of national reference energy mean emission levels for the FHWA Traffic Noise Model (FHWA TNM), Version 1.0.

Federal Highway Administration, McLean, Va.Mode of access: Internet.Author corporate affiliation: Transportation Systems Center, Cambridge, Mass.Report covers the period July 1993 - Nov 1995Subject code: NHSN*DESubject code: SDEDSubject code: WNB