Northern Subarea Study/Ga 400 Corridor Methodology of Determining Total Area of Noise Impacts

A noise analysis methodology was developed specifically to address the unique broad characteristics of the Northern Sub-Area Study (NSAS) / GA 400 Corridor, Atlanta, Georgia, that encompasses 1,080 square miles, includes six counties and seventeen municipalities, and it is home to 1.3 million people. Such noise analysis methodology estimated the number of households that could experience noise as a result of a proposed roadway widening transportation network. A unique combination of noise concepts and travel demand modeling was developed as a screening level approach to review the broad geographical area of the Northern Sub-Area corridor. In average a total 211,592.0 impacts were evaluated. The methodology consisted of developing a noise contour to evaluate the noise impact area, and estimating the number of potential noise impacts within the noise contour at the TAZ level. This method can be applied to similar cases in local/regional planning in order to estimate the number of noise impacts on a variety of land uses and obtain transportation solutions on a screening level per alternative, and compare them between each other to assist on the selection of the preferred alternative. This methodology is an application that could be run within a travel demand model to determine any project’s noise impacts and study the effects of different travel patterns, roadway networks, and land uses in which a more traditional approach consisting of measuring existing noise levels in the field and using the Traffic Noise Model (TNM) would be time-consuming and impractical due to the large project area.

Language

  • English

Media Info

  • Media Type: CD-ROM
  • Features: Figures; References; Tables;
  • Pagination: 13p
  • Monograph Title: TRB 85th Annual Meeting Compendium of Papers CD-ROM

Subject/Index Terms

Filing Info

  • Accession Number: 01025041
  • Record Type: Publication
  • Report/Paper Numbers: 06-0872
  • Files: TRIS, TRB
  • Created Date: May 31 2006 7:57AM