NOISE IMPACT ANALYSIS FOR A PROPOSED BUS OPERATING BASE

An evaluation was conducted of the potential noise impact for a proposed bus operating base in northern Seattle. In the analysis the impact of two alternative sites for the proposed base was examined. Both sites are located in residential areas. Thus, there was concern about the noise impact from bus traffic arriving and departing the base as well as daily operations at the base. Because of the need for buses to depart the base during early morning hours to travel to their assigned routes, of great concern was the potential impact of bus traffic on sleep disruption in neighborhoods near the base. A field noise-measurement program was undertaken to document the existing noise environment and to define typical bus passby noise levels. Based on these measurements, projections of the noise impact of buses relative to other noise sources were made. On the base noise-generating operations of particular interest include maintenance and repair activities and bus start-up and pull-out. Estimates of community noise levels for each operation were compared with noise-level limits in local ordinances to determine the extent of the potential impact of noise. For both off-base-and on-base-generated noise, mitigation measures were recommended, and estimates were made of the resulting noise-level reductions.

Media Info

  • Media Type: Print
  • Features: Figures; Maps; References; Tables;
  • Pagination: pp 6-14
  • Monograph Title: TRANSPORTATION NOISE: PREDICTION AND ANALYSIS
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00387620
  • Record Type: Publication
  • ISBN: 0309036534
  • Files: TRIS, TRB
  • Created Date: Sep 28 1984 12:00AM