✦ LIBER ✦

Improvement in the effect of drainage asphalt road surface on noise reduction

✍ Scribed by S. Meiarashi; M. Ishida; F. Nakashiba; H. Niimi; M. Hasebe; T. Nakatsuji

Publisher: Elsevier Science
Year: 1996
Tongue: English
Weight: 880 KB
Volume: 47
Category: Article
ISSN: 0003-682X
DOI: 10.1016/0003-682x(95)00035-8

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✦ Synopsis

In this report, we analyze the relationship between noise reduction and the thickness and aggregate size of the drainage asphalt road surface. Earlier results indicated overall noise reductions of 3-5 dB. However, noise reductions of 5-10 dB are necessary to improve the urban roadride areas of Japan.

In this paper, we report the structural development of the drainage asphalt road surface in order to improve the eflect on noise reduction. We conclude that the diameter of the aggregate is more important than the thickness of road surface.

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