Joor Road noise level assessment.

Details

• Creators:
  Gaspard, Kevin ; Rupnow, Tyson ; Zhang, Doc
• Corporate Creators:
  Louisiana Transportation Research Center
• Corporate Contributors:
  United States. Federal Highway Administration
• Subject/TRT Terms:
  • Tire/pavement noise
  • Traffic noise
  • Sound level
  • Portland cement concrete
  • Rolling contact
  • Macrotexture
  • Evaluation and assessment
  • Urban highways
• Publication/ Report Number:
  FHWA/LA946/14-01TA-P
• Resource Type:
  Tech Report
• Geographical Coverage:
  Louisiana
• Corporate Publisher:
  Louisiana Transportation Research Center
• Abstract:
  Joor Road (LA 946) is an Urban 5-lane Portland cement concrete roadway with an annual daily traffic (ADT) of approximately 13,500 with 7 percent ; trucks and posted speed of 55 mph. Since being opened to traffic in 2009, residents have been complaining about the high noise levels emanating from the ; roadway. ; A comprehensive experiment was developed. The experiment consisted of randomly selecting six PCC slabs, three northbound and three southbound, in ; the noisy areas. An additional PCC slab was selected in the southbound direction outside of the noisy area to use as a control. In order to determine if ; there were any significant differences between this project and another project constructed under the 2006 specifications, four PCC slabs were randomly ; selected for evaluation on O’Neal Lane, which was constructed approximately two years after this section of Joor Road. The parameters assessed from ; each of eleven slabs were tine depth, tine width, spacing between tines, and randomness of spacing between tines. ; Sound level measurements based on the pass by method indicated the sound levels were excessive (82 dBA) when compared to the Louisiana Department ; of Transportation and Development’s (DOTD) Highway Traffic Noise Policy of 66 dBA for residential areas. Sound level measurements from the OBSI ; assessment also indicated that sound levels generated by the tire/road contact were excessive with values as high as 110.6 dBA. ; Tine parameter analysis implied that the sources of excessive noise level emissions were due to excessive tine widths, non-randomness of spacing between ; tines, and the spacing intervals between the tines. ; Pavement macrotexture values for the north and southbound lanes were generally within the range of 0.5 to 0.8 mm as recommended by Federal Highway ; Administration (FHWA).
  More +
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/29210/dot_29210_DS1.pdf
• File Type:
  [PDF - 2.27 MB]
• Collection(s):
  US Transportation Collection
• Main Document Checksum:
  urn:sha-512:293d8b69af955cc1cf8b86ccd118a231e8faebf1b5cde33cb6c5c438626dc75308e3c994d85d4fe38d8a4e44b59759a508534e81fe04cf0d3102ba308505048f