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논문 기본 정보

자료유형
학술저널
저자정보
조창근 (서일대학)
저널정보
한국생활환경학회 한국생활환경학회지 한국생활환경학회지 제17권 제5호
발행연도
2010.10
수록면
585 - 594 (10page)

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초록· 키워드

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Noise barrier has the limitation of reducing the road traffic noise in low frequency bands because of its diffraction phenomenon. In order to maximize the noise reduction performance of noise barrier, it is necessary that diffracted noise in low frequency bands should be effectively reduced. The purpose of this study is to investigate the characteristic of traffic noise in main roads and frequency characteristic of it for designing noise barrier by active noise control. Field measurement of road traffic noise at 1~5 m high from the ground on the 6 roads was carried out, and the variation characteristic by traffic flow condition was analyzed in this study. As a result, the road traffic noise showed high in mid and high frequency bands and the highest in 1 ㎑. Especially, the noise showed very high levels in 1 ㎑ in case of high speed of vehicles. Dominant frequency of the noise was appeared in low frequency bands under 100 ㎐, especially in 50~87.5 ㎐. It is thought that low frequency badns under 100 ㎐ should be considered to make noise source for active noise control. It is necessary that passive noise control should be applied for reducing the noise in mid and high frequency bands of 1 ㎑ in designing noise barrier. In addition, active noise control technique should be applied for decreasing the noise in low frequency bands under 100 ㎐ in order to maximize the noise reduction performance of noise barrier.

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Abstract
1. 서론
2. 측정대상 도로의 개요
4. 측정결과 및 분석
5. 결론
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UCI(KEPA) : I410-ECN-0101-2012-590-003575557