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June 3

how highway sound barriers work?

Author: admin Category: Uncategorized

So I've always wondered how highway sound barriers work?
http://www.capital-beltway.com/SIIP-Dec2506-27.jpg

They block, reflect, or transmit the noise of the traffic.

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2 Responses to “how highway sound barriers work?”

  1. anna
    June 4th, 2009

    They block, reflect, or transmit the noise of the traffic.
    References :
    http://www.fhwa.dot.gov/environment/keepdown.htm

  2. basteve721
    June 4th, 2009

    Usually made of sound absorbing material or positioned so as to reflect the sound upward or disperse it so the sound waves are broken.
    Like water ripples hitting branches or leaves, there are no re-bounces back toward the source.
    References :

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