Assessment of asphalt concrete acoustic performance in urban streets

[en] Geo-referenced close proximity rolling noise and sound absorption measurements are used for acoustical characterization of asphalt concrete surfaces in an urban environment. A close proximity noise map of streets with low speed limits is presented for a reference speed of 50 km/h. Different pavements and pavement conditions, common in urban streets, are analyzed: dense and semidense asphalt concrete, with Spanish denomination D-8 and S-12, respectively, and on the other hand, dense pavement at the end of its service life 􏰁D-8*􏰀. From the acoustics point of view, the most favorable surface, by more than 4 dB􏰁A􏰀 compared with the S-12 mix, is the smoothest surface, i.e., the D-8 mix, even though it presents a minor absorption coefficient in normal incidence. Noise levels from dense surfaces 􏰁D-8􏰀 increase significantly over time, principally due to the appearance of surface defects such as cracks and ruts. Longitudinal variability of the close proximity tire/ pavement noise emission and surface homogeneity are also analyzed.

Disciplines :

Civil engineering

Author, co-author :

Paje, S.E.

Bueno, M.

Terán, F.

Vinuela, U.

Luong, Jeanne ; Université de Castilla - La Mancha > Physique Appliquée > Laboratoire d'Acoustique Appliquée à l'Ingénierie Civile

Language :

English

Title :

Assessment of asphalt concrete acoustic performance in urban streets

Publication date :

March 2008

Journal title :

Journal of the Acoustical Society of America

ISSN :

0001-4966

eISSN :

1520-8524

Publisher :

Acoustical Society of America, United States - New York

Volume :

123

Issue :

Pages :

1439-1445

Peer reviewed :

Peer Reviewed verified by ORBi

Available on ORBi :

since 27 February 2014

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Bibliography

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