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Research Reports

Vehicle Noise Radiation, Effective Height and Frequency Measurements

Description:

Actual vehicle measurements indicate that the best single frequency approximation for "A" weighted noise is 650 Hz. For light vehicles, the effective source height is 0.2 m (0.7 feet) above the lane surface. For heavy vehicles, the effective source height is 0.8 m (2.6 feet) above the lane surface.

 

  • Date Published: August, 1976
  • Publication Number: WA-RD 24.4
  • Last Modified: July 29, 2007
  • Author: Rene N. Foss.
  • Originator: University of Washington. Applied Physics Laboratory.
  • # of Pages: 29 p., 928 KB (PDF)
  • Subject: Audio frequency, Diffraction, Heavy vehicles, Height, Measurement, Noise, Noise barriers, Noise control, Sound attenuation, Traffic noise, Vehicles, Walls.
  • Keywords: Highway acoustics, noise suppression, Fresnel diffraction.
  • Related Publications:

    Noise Barrier Screen Measurements, Single Barriers, (WA-RD 24.1). Attenuation of Sound as a Function of Barrier Angle, (WA-RD 24.2). Noise Barrier Screen Measurements, Double Barriers. (WA-RD 24.3).
    Field Evaluation of Single Barriers, (WA-RD 24.5).

     


This abstract was last modified April 29, 2008