Pavement Noise Study

Historically, noise mitigation measures used in the U.S. transportation industry have included use of barriers, walls, and separation (e.g., distance). These methods have been the only acceptable solutions for federally funded projects. Quiet pavements can also be used to mitigate noise but are not currently permitted because the Federal Highway Administration (FHWA) does not view them as a permanent solution. In Arizona, like other states, berms and walls are the primary noise mitigation measures in the urban corridors. In April 2003, ADOT received approval from FHWA to allow the use of pavement surface type as a noise mitigation strategy. This approval allowed the use of Asphalt Rubber Friction Course (ARFC) overlays as a noise mitigation strategy when used on existing and newly constructed concrete pavements. Where this surfacing is used, ADOT receives a four-decibel reduction for the design of walls and berms. This credit equates to a six to eight foot reduction in wall or barrier height. Perhaps a more meaningful analogy is that if just a three-decibel reduction were achieved through the use of a quiet pavement, it would have a noise impact of about half of the actual traffic volume. The FHWA approval was granted with the condition that Arizona be a pilot program, with specific research objectives and requirements. The required research is intended to validate the efficacy of using ARFC as a noise mitigation strategy. Since the FHWA was concerned that a pavement solution is not a permanent solution, they requested a pilot program to study the long-term performance of the ARFC overlay. ADOT committed to a long-range study for up to 10 years, the estimated minimum life cycle of the ARFC pavement. The ADOT Intermodal Transportation Division (ITD) is currently conducting studies of Type 2 (wayside noise measurement) sites. The ITD studies will complement this research which focuses on Type 1 (source noise) and Type 3 (research grade) sites.


    • English


    • Status: Completed
    • Funding: $780000.00
    • Contract Numbers:

      SPR 577

    • Sponsor Organizations:

      Federal Highway Administration

      1200 New Jersey Avenue, SE
      Washington, DC  United States  20590

      Arizona Department of Transportation

      206 South 17th Avenue
      Phoenix, AZ  United States  85007
    • Project Managers:

      Kresich, Dianne

    • Performing Organizations:

      Nichols Consulting Engineers

      1885 S. Arlington Avenue
      Suite 111
      Reno, NV  United States  89509

      Illingworth & Rodkin, Incorporated

      Petaluma, California  United States 
    • Principal Investigators:

      Donovan, Paul

    • Start Date: 20050331
    • Expected Completion Date: 20180531
    • Actual Completion Date: 20180228
    • Source Data: RiP Project 11496

    Subject/Index Terms

    Filing Info

    • Accession Number: 01566179
    • Record Type: Research project
    • Source Agency: Arizona Department of Transportation
    • Contract Numbers: SPR 577
    • Files: RiP, STATEDOT
    • Created Date: Jun 11 2015 1:02AM