Study to analyze the effects of vehicles and pavement surface types on noise |
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Authors: | Dae Seung Cho |
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Institution: | a Department of Naval Architecture and Ocean Engineering, Pusan National University, San 30, Changjeon-dong, Kumjeong-gu, Pusan 609-735, Republic of Korea b Pavement Research Group, HTTI, Korea Highway Corporation, 50-5, Sancheok-ri, Dongtan-myeon, Hwaseong-si, Gyeonggi-do, 445-812, Republic of Korea |
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Abstract: | The effects of vehicles and pavement surface types on noise have been investigated at the Korea Highway Corporation’s Test Road along the southbound side of the Jungbu Inland Expressway, South Korea. The study was conducted in 2005 and 2006 through field measurements at nine surface sections of asphalt concrete and Portland cement concrete pavements using eleven vehicles. For the road noise analysis, the sound power levels (PWLs) of combined noise (e.g., tire/pavement interaction noise and power-train noise together) and tire/pavement interaction noise using various vehicles were calculated based on the novel close proximity (NCPX) and pass-by methods. Then, the characteristics of the PWLs were evaluated according to surface type, vehicle type, and vehicle speed. The results show that the PWLs of vehicles are diversely affected by vehicle speed and the condition of the road surface. |
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Keywords: | Sound power level Close proximity Tire/pavement interaction noise |
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