NOISE PRODUCED BY OPEN-GRADED ASPHALTIC FRICTION COURSES

As a result of more widespread use of open-graded asphaltic friction courses, field tests were undertaken in Arizona, California, and Nevada to determine their noise properties as compared with surfaces of portland cement concrete, chip seals, and asphalt-coated dense-graded materials. Sound-level measuring equipment and microphones were installed at the several test sites, a 1973 Plymouth station wagon was used as the test vehicle, and three tire-tread designs were used: mud and snow tire, standard tire, and radial tires. The measurements were recorded on magnetic tape, and then electronically analyzed. Results (which are given in tables and graphs) show that the open-graded asphaltic friction course is less noisy than the other three surfaces for each combination of speed and each combination of tread design. In conclusion, it can be stated that the open-graded asphaltic friction course has a lower noise level than the other three surfaces tested; that the use of this course to increase skid resistance also results in lower tire-pavement noise; and that the use of snow tires results in a noticeable increase in noise level over the standard and radial rib tires.

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  • Corporate Authors:

    Federal Highway Administration

    Office of Research and Development, 1200 New Jersey Avenue, SE
    Washington, DC  United States  20590
  • Authors:
    • Williams, W L
    • Kay, R A
    • Stephens, J K
  • Publication Date: 1975-6

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Filing Info

  • Accession Number: 00097634
  • Record Type: Publication
  • Files: TRIS, USDOT
  • Created Date: Sep 30 1975 12:00AM