01643034

Monograph

http://www.trb.org/Main/Blurbs/175743.aspx

This document contains nine appendices to NCHRP Research Report 842: Mapping Heavy Vehicle Noise Source Heights for Highway Noise Analysis. NCHRP Research Report 842 provides an analysis to determine height distributions and spectral content for heavy vehicle noise sources. The report also explores establishing and beginning the development of an extended heavy vehicle (truck and bus) noise source database for incorporation into traffic noise models, including future versions of the U.S. Federal Highway Administration (FHWA) Transportation Noise Model (TNM) acoustical code. The appendices include: a description of measurement sites; on-board sound intensity results; statistical isolated pass-by discussion; additional contour analysis for heavy trucks; methods of frequency weighting; two-point source distribution development; barrier/distribution analysis; medium trucks discussion; and a light vehicles and buses summary.

NCHRP Project 25-45

English

175p

2017

NCHRP Web-Only Document

9780309456272

Draft Final Report

Web

Appendices; Figures; Photos; Tables

Heavy vehicles; Sound level; Sound level meters; Sound transmission; Traffic noise; Trucks

Environment; Highways; Motor Carriers; Vehicles and Equipment

TRIS, TRB, ATRI

Aug 3 2017 1:20PM