서울시 내 아스팔트/콘크리트 도로 소음 측정 및 분석에 대한 연구

Although the Seoul city government has taken and implemented countermeasures to decrease the noise, the noise complaints in urban residential area continue to increase. In this study,to decrease the noise appeals, the noise level occurred at the road was measured and analyzed. The measurement method of the noise is NCPX(Noble Close ProXimity) method, which is the tire/pavement interaction noise measurement by attaching the microphone at the proximity location of tire. The digital signal measured by NCPX was analyzed by CPB(Constant Percentage Bandwidth)analysis to determine the total SPL(Sound Power Level). Some regions showed higher noise levels than others. In addition, the noise levels generated from Portland cement concrete pavement were higher than those from asphalt concrete pavement. Hence, the findings of this study suggest that the noise generated from Portland cement concrete pavement can cause harmful effects on people on the sidewalks.