Caltrans thin lift study : effects of asphalt pavements on wayside noise

Details

• Creators:
  Rochat, Judith L ; Read, David R. ; Fleming, Gregg G.
• Corporate Creators:
  John A. Volpe National Transportation Systems Center (U.S.)
• Corporate Contributors:
  California. Dept. of Transportation. Division of Research and Innovation
• Subject/TRT Terms:
  • Traffic noise
  • Tire/pavement noise
  • Asphalt pavements
  • Noise control
  • Sound level
  • Sound level meters
  • Data collection
  • Acoustic measuring instruments Highway traffic noise
  • tire/pavement interation noise
  • Asphalt pavements
• Publication/ Report Number:
  CA 10-0146
• Resource Type:
  Tech Report
• Geographical Coverage:
  Los Angeles (California)
• Corporate Publisher:
  John A. Volpe National Transportation Systems Center (U.S.)
• Abstract:
  The Volpe Center Acoustics Facility, in support of the California Department of Transportation, ; participated in a long-term study to assess several types of pavement for the purpose of noise abatement. ; On a 6.4-km (4-mi) stretch of a 2-lane highway in Southern California, several asphalt pavement overlays ; were examined. Acoustical, meteorological, and traffic data were collected in each pavement overlay ; section, where microphones were deployed at multiple distances and heights. Single vehicle pass-by events ; were recorded primarily for 3 vehicle types: automobiles, medium trucks, and heavy trucks. Data were ; analyzed to determine the noise benefit of each pavement as compared to the reference dense-graded ; asphalt pavement; this includes a modified Statistical Pass-By Index as well as average LAFmx values for ; each vehicle type. In addition, 1/3-octave band data were examined. Results from the study indicate that ; applying a quieter pavement overlay can reduce wayside-measured sound levels.
• Format:
  PDF
• Funding:
  43A0140
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/9697/dot_9697_DS1.pdf
• File Type:
  [PDF - 3.27 MB]
• Collection(s):
  Volpe Center
• Main Document Checksum:
  urn:sha-512:3496d2ebe3fd24dd0c189e8c0a4fef9516a635753cceeed1c2adad0d3721a933403b31b0aeab54caf3c678fa5dc33f6a82b7aefd75ee767d54c57ba4dfc952c2