Air Temperature Influence on Near-Field Tire-Pavement Noise

This paper outlines an investigation of the influence of variations in air temperature on near-field pavement-tire noise measurements. Forty-six hot-mix asphalt (HMA) sections at the National Center for Asphalt Technology (NCAT) test track were repeatedly tested at four different times during a warm day with air temperatures ranging from 50°F – 86°F. Near-field tire-pavement noise measurements were taken using the NCAT close-proximity (CPX) trailer with the Michelin standard reference test tire (SRTT) at a speed of 45 mph. The HMA mixtures evaluated included dense-graded Superpave, open-graded friction course (OGFC) and stone matrix asphalt (SMA). Based on a statistical analysis of variance (ANOVA) it was concluded that sound pressure measurements on all of the HMA surfaces tested were relatively insensitive to changes in air temperature. This finding suggests that, for practical applications, no temperature correction need be applied to sound pressure measurements. Temperature correction equations as a function of frequency are provided based on sound pressure measurements of the sections at the track for more accurate assessments of tire-pavement noise. It was found that relating sound pressure levels to sound wavelength calculated from estimated wave speeds allows a better characterization of the near-field tire-pavement noise temperature-frequency dependency.

• Corporate Authors:

  Transportation Research Board

  500 Fifth Street, NW
  Washington, DC  United States  20001
• Authors:
  • Smit, Andre de Fortier
  • Waller, Brian
• Conference:
  • Transportation Research Board 87th Annual Meeting
  • Location: Washington DC, United States
  • Date: 2008-1-13 to 2008-1-17
• Date: 2008

Language

• English

Media Info

• Media Type: DVD
• Features: Figures; References; Tables;
• Monograph Title: TRB 87th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

• TRT Terms: Atmospheric temperature; Friction course; Hot mix asphalt; Near field; Open graded aggregates; Pavement management systems; Paving materials; Stone matrix asphalt; Tire/pavement noise; Traffic noise
• Subject Areas: Design; Highways; Pavements; I22: Design of Pavements, Railways and Guideways;

Filing Info

• Accession Number: 01090278
• Record Type: Publication
• Report/Paper Numbers: 08-0389
• Files: TRIS, TRB
• Created Date: Mar 21 2008 8:15AM