Title: NEW BARRIER DESIGN TOOLS: SESSION 6 (SOME INSIGHTS INTO THE DESIGN OF NOISE BARRIERS)
Abstract: Traditional discussions of noise barrier performance can be misleading to all but the most experienced traffic noise specialist. Insights and a better understanding of traffic noise barriers can be gained by considering attenuation as a function of the square root of the Fresnel number. It may then be shown that attenuation is linearly related to barrier height over a reasonable range of Fresnel numbers. Contours of equal excess attentuation are shown to be particularly useful for gaining a clearer understanding of the sound fields behind a barrier. Finally, resolution of a heavy truck into its component sources for barrier attenuation calculations is shown to result in marginal increases in accuracy.
Publication Year: 1979
Publication Date: 1979-03-01
Language: en
Type: article
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