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Audiol > Volume 8(2); 2012 > Article
Audiology 2012;8(2): 219-223.
Published online: December 31, 2012.
doi: http://dx.doi.org/10.21848/audiol.2012.8.2.219
부산광역시 도로변 방음벽의 소음 차감 효과
박미혜1, 천서현2, 최환진3
1가야대학교 언어치료청각학과
2부산 독일보청기
3양산부산대학교병원 이비인후과
The Study of Effectiveness of the Soundproof Wall to Reducing Road Noise in Pusan City
Meehye Park1, Seohyeon Cheon2, Hwanjin Choi3
1Department of Speech-Language Pathology & Audiology, Kaya University, Kimhae, Korea
2Pusan Germany Hearing Aids, Pusan, Korea
3Department of Otorhinolaryngology, Pusan National University Yangsan Hospital, Pusan, Korea
Correspondence  Meehye Park ,Tel: (055) 330-1169, Fax: (055) 331-0112, Email: park2809@hanmail.net
Received: November 3, 2012; Revised: December 4, 2012   Accepted: December 14, 2012.  Published online: December 31, 2012.
ABSTRACT
This study investigates effect of the soundproof wall installed along the roadside of Pusan metropolis. Eight soundproof walls of heavy traffic road have been selected among the total 30 walls in Pusan. Repeated noise measurement during the daytime and nighttime have been implemented to compare the equivalent sound level of the front with the back of the soundproof wall. Result are as follows; First, daytime noise intensity at the back of the soundproof wall was 9.89(8.50∼11.28)dB SPL less than that of the front of the wall. Second, nighttime noise intensity at the back of the soundproof wall was 4.66(0.73∼6.45)dB SPL less than that of the front of the wall. Third, noise reducing effect of soundproof of the daytime is greater than the nighttime.
Key Words: Noise, Sound proof wall, Equivalent sound level
중심단어: 소음, 방음벽, 등가소음
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