• Title, Summary, Keyword: Community Noise

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Community Noise: New Guidelines and Policy (생활소음종합대책:추진방향과 기본목표)

  • Kim, Jeung-T.;Park, Young-M.;Jeon, Jong-C.;Park, Jong-S.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.86-88
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    • 2006
  • Community noise has been serious social issues in Korea. The community noise concerns on traffic, construction, factory, and apartment complex noise. In traffic noise, road, railway, airport sectors are included. This paper summerizes the final report prepared for MOE in 2005 by authors. The new policy will be enforced beginning in 2006 with 5 year schedule. Details on the policy will be demonstrated at the presentation.

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Community Annoyance from Transportation Noise in Korea (한국인의 교통소음에 대한 불쾌감 연구)

  • Lee, Soo-Gab;Lim, Chang-Woo;Kim, Jae-Hwan;Hong, Ji-Young
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.33-42
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    • 2005
  • Studies on community annoyance caused by transportation noise exposure were carried out in fifty-one areas around Gimpo and Gimhae international airports, Gyungbu and Honam railway lines and east and riverside-northen motorway to accumulate social survey data and to assess the relationship between each transportation noise level and degree of annoyance in Korea. The measurements of transpotation noise were carried out using portable precision sound level meters (B&K type 2238 and LD 812) except in aircraft noise. Aircraft noise levels were measured automatically by airport noise monitoring system, B&K type 35n Social surveys were carried out to people living around noise measurement points. Questionnaires were only aggregated by face-to-face interviews using various questions concerned with demographic factors, degree of noise annoyance, interference with daily activities and health-related symptoms. The questions of noise annoyance were answered on an 11-point numerical scale. The respondents, from 18 to 70 years of age, were randomly selected and completed the questionnaire for themselves. The total number of respondents for the questionnaires was 1,839. The results showed that community annoyance of railway noise in Korea is similar to that in Japan, but is more severe than that in European countries.

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Installation Effect on Noise Reducer for Railway Traffic Noise (철도환경소음을 줄이기 위한 소음감소기의 설치제안)

  • Kim, Jeung-T.;Hong, Yoon-H.
    • Journal of the Korean Society for Railway
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    • v.10 no.3
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    • pp.278-283
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    • 2007
  • Community noise, especially a rail traffic noise has been serious social issues in Korea. Our society needs practical tools to reduce noise levels for public who live near the railway lines. This paper proposes a noise reducer for railway traffic noise. At the beginning, various types of reducers are discussed, with the advantages and disadvantages with respect to acoustical phenomena. Then, the acoustic effects are discussed based on an insertion loss measurement. After several types of reduces are installed at fields, the noise level is monitored with and without the reducer. The result shows that the proper selection of reducers affects the noise level by 6 dB. The statistics of the mean and a standard deviation turns out to be 3.2 dB and 0.8 dB, respectively. Noise reducers are strongly recommended for the place where apartments are densely constructed alone the railway. Installation of noise reducers seems to be an effective and practical solution for the community traffic noise reduction.

Railway Noise: Current Status and Reduction Schemes (철도변 환경소음: 현황과대책)

  • Kim, Jeung T.;Kim, Tae M.;Son, Jeung G.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.563-563
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    • 2013
  • Railway noise has been a social issues nowadays in our community. This paper discusses the environmental noise problem along railway lines. We overview the noise level and noise exposed populations due to conventional and high speed train operation at first. Then we introduce variety of noise reduction schemes to protect the community based on an engineering approach. Some applicationcases to reduce the noise will be demonstrated. Finally, we propose the noise barrier tunnel as a tool of a generic solution to reduce the community noise along railway lines.

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Community Annoyance from Civil Aircraft Noise in Korea (한국인의 민간 항공기 소음에 대한 불쾌감 연구)

  • Lim, Chang-Woo;Kim, Jae-Hwan;Hong, Ji-Young;Lee, Soo-Gab
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.900-904
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    • 2005
  • Studies of community annoyance caused by civil aircraft noise exposure were carried out in fifteen areas near Gimpo and Gimhae international airports, Korea, to accumulate social survey data in Korea and to assess the relationship between aircraft noise level and degree of annoyance. Aircraft noise levels were measured automatically by airport noise monitoring system, B&K type 3597. A social survey was carried out people living within In meters of noise measurement points, as a rule. Questionnaires were only aggregated face-to-face interviews using various questions which concerned with demographic, degree of noise annoyance, interference with daily activities and health-related symptoms. The questions of noise annoyance were answered on an 11-point numerical scale. The respondents, from 18 to 70 years of age, were randomly selected and completed the questionnaire themselves. The total number of respondents for the questionnaires was 554.

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Noise Exposure Assessment in a Dental School

  • Choosong, Thitiworn;Kaimook, Wandee;Tantisarasart, Ratchada;Sooksamear, Puwanai;Chayaphum, Satith;Kongkamol, Chanon;Srisintorn, Wisarut;Phakthongsuk, Pitchaya
    • Safety and Health at Work
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    • v.2 no.4
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    • pp.348-354
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    • 2011
  • Objectives: This cross-sectional study was performed in the Dental School of Prince of Songkla University to ascertain noise exposure of dentists, dental assistants, and laboratory technicians. A noise spectral analysis was taken to illustrate the spectra of dental devices. Methods: A noise evaluation was performed to measure the noise level at dental clinics and one dental laboratory from May to December 2010. Noise spectral data of dental devices were taken during dental practices at the dental services clinic and at the dental laboratory. A noise dosimeter was set following the Occupational Safety and Health Administration criteria and then attached to the subjects' collar to record personal noise dose exposure during working periods. Results: The peaks of the noise spectrum of dental instruments were at 1,000, 4,000, and 8,000 Hz which depended on the type of instrument. The differences in working areas and job positions had an influence on the level of noise exposure (p < 0.01). Noise measurement in the personal hearing zone found that the laboratory technicians were exposed to the highest impulsive noise levels (137.1 dBC). The dentists and dental assistants who worked at a pedodontic clinic had the highest percent noise dose (4.60 ${\pm}$ 3.59%). In the working areas, the 8-hour time-weighted average of noise levels ranged between 49.7-58.1 dBA while the noisiest working area was the dental laboratory. Conclusion: Dental personnel are exposed to noise intensities lower than occupational exposure limits. Therefore, these dental personnel may not experience a noise-induced hearing loss.

Specific Reaction to Road-traffic Noise (도로교통소음에 대한 주민들의 반응)

  • Koh, Dai-Ha;Youm, Jung-Ho;Kwon, Keun-Sang
    • Journal of Environmental Health Sciences
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    • v.30 no.3
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    • pp.283-292
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    • 2004
  • Valid evaluation of community reaction to road-traffic noise exposure is important for the policy making and quality of life. The purpose of this study is to evaluate the relationship between community reaction and nighttime road-traffic noise. The study measured nighttime roadside noise caused by high traffic which is greater than LAeq(22:00-07:00) 65dB(A) and lower than 65dB(A) at Chonju city, from March to April, 2003. Three hundred sixty seven subjects, aged from 20 to 65, were selected from those who are residing close to the major roads. They were asked to answer the questions regarding noise source, stress(PWI-SF), annoyance, disturbance of specific activity, disturbance of sleep, somatic symptom, and four suggested confounding factors. The relationship between annoyance, somatic symptom and noise exposure was not significant. Adjusted odds ratio(95% C.I.) for disturbance of communication  and disturbance of attention and rest  were 1.59(1.03-2.71), 1.64(1.06-2.81), respectively. On the other hand sleep disturbance  was indicated as 1.34(0.77-2.32). The results suggested that federal policy-making about road-traffic noise should consider community reaction evaluated by various perspective including annoyance, disturbance of specific activity, disturbance of sleep, and confounding factors.

Noise-reduction Function and its Affecting Factors of Plant Communities

  • Song, Xiu-hua;Wu, Qian-qian;Yu, Dong-ming;PIAO, Yong-ji;Cho, Tae-Dong
    • Journal of Environmental Science International
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    • v.25 no.10
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    • pp.1407-1415
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    • 2016
  • In this study, we investigated the relationship between noise reduction and the community structure of nine groups of typical plant communities as well as the reduction in noise at different frequencies. The semantic differential method was adopted to explore the perception of noise reduction. The results indicated that there was a significantly positive correlation between noise reduction and coverage, a significantly negative correlation between noise reduction and bifurcate height, and a negative correlation between noise reduction and bare rate. However, there was no significant correlation between noise reduction and height, diameter at breast height, or crown width. The reduction of middle-frequency noise was better than that of low- and high-frequency noise. The indicators "quiet" and "calm" showed that plant communities could reduce the noise perceived by humans. However, overly dense woodland caused nervousness, fear, depression, and other negative effects. Relatively open environments and those with large forest gaps obtained the highest evaluation.

Comparative Study on Annoyance of Traffic and Aircraft noise (도로소음과 항공기소음의 성가심 반응 비교 연구)

  • Lee, Ki-Jung;Chang, Seo-Il;Lee, Kun
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.131-134
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    • 2005
  • This study examine the annoyance of transportation noise exposure and found the survey method about which noise induces more disturbance or annoyance when more than two kinds of noise exist. This study describes the noise annoyance survey performed in the vicinity of Sin-wol interchange. This residential area was exposed to aircraft noise and traffic noise simultaneously and aircraft noise exposure of this area is about 81 WECPNL, traffic noise exposure is about 81.2 dB(A) nearby road. Noise sources are grouped into three part, traffic noise, aircraft noise and community noise. The questionnaire includes how often, how loud each noise is heard. Also this deals with comparative annoyance reaction from specific noise sources such as aircraft or traffic and its disturbance of daily activities. Facade noise mapping are executed by using a commercial noise mapping software.

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