도로변 인구밀집지역의 교통 소음에 관한 연구 = (A) Study on the Traffic Noise in the Population Massed Zones of the Road Side

다국어 초록 (Multilingual Abstract)

This study was carried out measuring and analyzing the traffic noise at centering of Bongsun, Munheung and Weolgok Section where were the population massed zones by road side in Kwang Ju. From May 1993 to April 1995, In order to provide the basic data for the establishing efficiency and economical countermeasuring of traffic noise.
The results were as follows ;
1. It was showed that the Equivalent Sound Level(Leq) of Bongsun Section approached 64dB(A) and that of Munheung and Weolgok Section was appeared highly 69 ~74dB(A) during day­time(06:00 - 22:00 ;environmental criteria of noise is 65dB(A)). Whereas, That of Bongsun Section exceeded environmental criteria of noise with 57dB(A) and that of Munheung and Weolgok Section exceeded greatly environmental criteria of noise with 67 -69dB(A) during night-time (22:00-06:00 ; environmental criteria of noise is 55dB(A)).
2. The Noise Pollution Level(L_(NP)) of Bongsun Section was 74dB(NP) and that of Munheung and Weolgok Section were 80dB(NP), 83dB(NP) during day­time(06:00-22:00). Also, That of Bongsun Section was 7ldB(NP) and that of Munheung and Weolgok Section was 82dB(NP) during night­time(22:00-06:00). In this place, We know that there was no big difference between day and night­time and it was showed highly in Munheung and Weolgok Section.
3. The Traffic Noise Index(TN1) of Bongsun Section was 65, that of Munheung 69 and that of Weolgok 80 during day­time and that of Bongsun was 72, that of Munheung 83 and that of Weolgok 85 during night-time. So, it was large variation between day and night­time and was showed highly in Munheung and Weolgok Section. Therefore, It got to damage for the daily living of the residance.
4. The correlationship between L_(NP)(X) and Leq(Y) were Y =0.8959X- 0.8970 (R^(2) =0.7959) during day-time and Y = 0.9231X-8.3333 (R^(2) =0.9082) during night­time. Correlation coefficient(r) were 0.8921 during day­time and 0.9530 during night­time. So, this data was indicated that traffic noise was the main source of city noise pollution.
5. When we opening the window, the traffic noise was affected seriously on our daily living according to the questionnaire about disturbing for living against the traffic noise. Especially, It was showed that the disturbance of listening phone was been 52%, T·V and Radio listening 50% and reading or thinking 71%. So, it was estimated that we need for the countermeasuring of traffic noise.
The damage of traffic noise will be a serious problem, so the effective and economical countermeasuring of noise will be proceeded when we build up a large building or housing complex and it also need enlightenment activity in order to reduce the sound by improvement of how to drive.

목차 (Table of Contents)

• 목차 = ⅰ
• List of Figures = ⅲ
• List of Tables = ⅴ
• ABSTRACT = ⅵ
• Ⅰ. 序論 = 1
• Ⅱ. 理論的 考察 = 4
• A. 소음의 정의 = 4
• B. 소음의 영향 = 5
• C. 자동차소음 = 8
• 1. 자동차 소음의 특성 = 8
• 2. 주요소음 발생원인 = 10
• 3. 소음원의 기여도 = 10
• 4. 자동차소음의 주파수 특성 = 11
• D. 교통소음의 평가 = 14
• 1. 최대소음레벨 (Lmax) = 14
• 2. 통계소음지수 (Lx) = 14
• 3. 등가소음레벨 (Leq : Equivalent Sound Level) = 15
• 4. 소음공해레벨 (L_(NP) : Noise Pollution Level) = 15
• 5. 주야평균음압레벨 (L_(DN) : Day-Night Average Sound Level) = 15
• 6. CNEL (Community Noise Exprosure Level) = 16
• 7. 교통소음지수 (TNI : Traffic Noise Index) = 16
• 8. 소음지수와 불쾌감의 관계 = 16
• Ⅲ. 調査內容 및 方法 = 18
• Ⅳ. 結果 및 考察 = 22
• A. 교통인자 = 22
• 1. 교통량 = 22
• 2. 차속 = 23
• 3. 도로구조 = 23
• B. 주파수 분석 = 26
• C. 측정지구별 소음분포 = 28
• 1. 봉선지구 = 28
• 2. 문흥지구 = 33
• 3. 월곡지구 = 34
• D. 평가소음지수별 상관관계 = 45
• E. 설문조사에 의한 주관적 반응 = 48
• Ⅶ. 結論 = 52
• REFERENCES = 54