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http://dx.doi.org/10.5762/KAIS.2020.21.9.92

Analysis of Traffic Noise for Single and Double Layered Porous Pavement with SPB Method -National Route 1, Sejong-Si Section-  

Yoo, In-Kyoon (Department of Infrastructure Safety Research, Korea Institute of Civil and Building Technology)
Lee, Su-Hyung (Department of Infrastructure Safety Research, Korea Institute of Civil and Building Technology)
Han, Dae-Seok (Department of Infrastructure Safety Research, Korea Institute of Civil and Building Technology)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.21, no.9, 2020 , pp. 92-102 More about this Journal
Abstract
Porous pavement (PP) has attracted attention as a new alternative measure against road traffic noise. PP refers to pavement that reduces the fines in the asphalt mixture to form voids. These voids can reduce traffic accidents and friction noise. For active application, verification of the noise reduction effect is required. In this study, the noise reduction of single-layer PP(SLPP) and double layer PP(DLPP) was analyzed. First, the Sejong section was selected, and traffic noise was measured using the SPB method on the roadside. The traffic volume, speed, and mixing ratio of large vehicles were measured. As a result, the DLPP was evaluated to be 7.95 dB(A) smaller on average and 7.57dB(A) smaller at the 95% reliability level than the SLPP. The traffic volume was more influential than the speed and the mixing rate of large vehicles. As the traffic volume increased, the noise increased, but the difference in noise between the two pavements decreased gradually. The results showed that the most effective way to reduce road traffic noise is to change the road pavement rather than reduce traffic speed, restrict traffic for heavy vehicles, or reduce traffic volume.
Keywords
Double-layer Porous Pavement; Traffic Noise; SPB; Traffic Speed; Traffic Volume;
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