ROLE OF MULTIPLE REFLECTIONS AND REVERBERATION IN URBAN NOISE PROPAGATION

Various studies of sound transmission in urban areas that involve multipath propagation or multiple reflections are reviewed. Studies of propagation in a single street or corridors display important discrepancies between theoretical analyses and field experiments. Model studies suggest that scattering may play an important, but as yet unexplained role. Sources above the street show good correspondence between field and laboratory data and theory. Intrusion of aircraft noise into an urban area shows that sound may be slightly amplified above an open-terrain condition due to channeling effects. The general urban background noise appears to be accounted for by surface transportation sources distributed over the city, aside from a shielding factor of 10-15 dB of as yet undetermined origin. /Author/

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  • Corporate Authors:

    Acoustical Society of America

    335 East 45th Street
    New York, NY  United States  10017
  • Authors:
    • Lyon, R H
  • Publication Date: 1974-3

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Filing Info

  • Accession Number: 00262194
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Oct 22 1974 12:00AM