Quantitative comparison between noise reduction factors of drainage asphalt pavement

Autor:	S. Meiarashi, Masaki Hasebe, T. Nakatsuji, H. Niimi, F. Nakashiba
Rok vydání:	1995
Předmět:	Reduction (complexity) Noise Absorption (acoustics) Acoustics and Ultrasonics Asphalt Noise reduction Airflow Environmental science Geotechnical engineering Tread Drainage
Zdroj:	Applied Acoustics. 44:165-179
ISSN:	0003-682X
Popis:	In this report, we analyze the noise reduction observed in low noise drainage asphalt pavement. Earlier results have indicated overall noise reductions of 3–5 dB, but there has been some discrepancy as to whether this improvement is due to the higher absorption coefficient of the new asphalt or to a reduction in airflow noise through the treads. In this paper, we report a quantitative comparison of all the major noise reduction factors. We conclude that the major noise reduction is due to the higher absorption coefficients of new asphalts.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::688815105b48de687b95982a45a54eb9 https://doi.org/10.1016/0003-682x(95)91371-9 Zobrazit plný text záznamu Full Text from ScienceDirect