A description of motor vehicle noise sources and the potential for their control is provided. The report presents an overview of the suggested noise prediction methodology, which is a four step process that includes approximating noise impacts using a nomograph procedure to determine noise levels associated with given traffic and site characteristics; refining these predictions by more accurate representation of design parameters and use of a computer program that is able to plot as well as calculate noise impact; introducing appropriate noise-control options and evaluate them, using a noise barrier nomograph solution; lastly, selected options are fully evaluated using the computer program. A comprehensive review of noise control measures, including not only barriers but also other alternatives, such as grade separation, decks, and right-of-way modifications. Procedures for measuring background noise levels, an evaluation of an environmental impact assessment procedure, and a user's manual describing and listing the computer programs for predicting and plotting highway noise levels are also included.

Media Info

  • Features: Appendices; Figures; References; Tables;
  • Pagination: 13 p.
  • Serial:
    • NCHRP Report
    • Issue Number: 174
    • Publisher: Transportation Research Board
    • ISSN: 0077-5614

Subject/Index Terms

Filing Info

  • Accession Number: 00163055
  • Record Type: Publication
  • Files: TRIS, TRB, ATRI
  • Created Date: Oct 13 1977 12:00AM