• Title/Summary/Keyword: 소음 설문조사

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A Study on the Actual Survey and Reduction of Plumbing Noise in Apartment Houses (공동주택 급배수 설비소음의 실태 및 저감방안에 관한 연구)

  • Kim, Heung-Sik;Ji, Yong-Kyoun;Yoon, Se-Cheol
    • The Journal of the Acoustical Society of Korea
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    • v.9 no.4
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    • pp.45-54
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    • 1990
  • As the results of actual survey of indoor noise in apartment houses, it represents that plumbing noise and floor impact noise are most unsatisfactory factors to inhabitants. In this paper, the actual condition of plumbing noise in apartment houses was measured and the methods of plumbing noise reduction are suggested. For these suggestions, the actual survey of plumbing noise and the model test on structure-borne sound of water supply pipe and drain sound were carried out.

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Questionnaire Survey on Annoyance of Floor Impact Sound (층간소음 어노이언스에 대한 설문조사)

  • Jeong, Jeong-Ho;Lee, Pyoung-Jik;Jeon, Jin-Yong
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.262-265
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    • 2006
  • In order to investigate characteristics of floor impact sound generated in the apartment buildings, questionnaire survey was conducted for respondents living in apartments in 200t. Questions in the surrey were on the characteristics of real impact sounds, subjective annoyance and satisfaction on the heavy and light impact sources. From the survey results, it was found that most annoying time of a day and the space were 8 p.m. to midnight at living room. It was also revealed that the main source of the floor impact sound from the upper floor is a child's jumping and running at from six to nine. More than half of people were not satisfied on the floor impact isolation performance of their own apartments. The percentage of residents who were annoyed by the heavy-weight impact sound such as children's jumping and adult's walking was $5{\sim}10%$ lower than by light-weight impact sound. In addition, females being responded more annoyed by floor impact sound than males.

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A Study on Variables of Aircraft Noise Survey in Korea (국내 항공기 소음 성가심 조사 설계 시 고려해야 할 변수에 관한 연구)

  • Lee, Ki-Jung;Lee, Kun;Chang, Seo-Il;Son, Jin-Hee;Lee, Yeon-Soo
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • pp.742-749
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    • 2006
  • For the purpose of finding if aircraft noise annoyance response is affected to variables when noise survey is performed, the questionnaire survey is conducted around the Gimpo International Airport in Seoul, Republic of Korea. This residential area is exposed to the aircraft noise and road traffic noise, simultaneously. Research areas are classified according to three different aircraft noise exposure levels expressed in WECPNL, under 75, between 75 and 80, and above 80 WECPNL, on aircraft noise map. The 7-step numerical magnitude with verbal category scales is used to measure the annoyance level. This surrey suggests that aircraft noise annoyance is not affected to an important extent by other noise sources (road traffic noise, community noise) and demographic variables (sex, age, education, occupation, dwelling type, length of residence). Aircraft noise annoyance would be related to complaint activity which is one of attitudinal variables.

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Application Method of Logistic Regression Analysis for Annoyance Prediction Model Based on Predicted Noise Level (예측소음도를 이용한 어노이언스 예측모델을 위한 로지스틱 회귀분석의 적용방법)

  • Son, Jin-Hee;Lee, Kun;Choung, Tae-Ryang;Chang, Seo-Il
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.20 no.6
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    • pp.555-561
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    • 2010
  • Predicted noise level has been used to assess the annoyance response since noise map was generalized and being the normal method to assess the environmental noise. Unfortunately using predicted noise level to derive the annoyance prediction curve caused some problems. The data have to be grouped manually to use the annoyance prediction curve. The aim of this paper is to propose the method to handle the predicted noise level and the survey data for annoyance prediction curve. This paper used the percentage of persons annoyed(%A) and the percentage of persons highly annoyed as the descriptor of noise annoyance in a population. The logistic regression method was used for deriving annoyance prediction curve. It is concluded that the method of dichotomizing data and logistic regression was suitable to handle the predicted noise level and survey data.

Demographic and Attitudinal Factors that Modify Annoyance from Aircraft Noise (항공기 소음 성가심 반응에 영향을 미치는 변수에 관한 연구(II) - 김포공항 주변 거주민을 대상으로 -)

  • Son, Jin-Hee;Lee, Kun;Chang, Seo-Il
    • Journal of Korean Society of Environmental Engineers
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    • v.29 no.12
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    • pp.1366-1370
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    • 2007
  • For the purpose of finding how the annoyance response to aircraft noise is affected by non-noise variables, the questionnaire survey is conducted around the Gimpo International Airport in Seoul, Korea. The non-noise variables used in this research are divided into two categories; demographic and attitudinal variables. The result of the survey suggests that aircraft noise annoyance is not affected to an important extent by other noise sources(e.g., road traffic noise and community noise etc.) and the demographic variables (sex, age, education, occupation, dwelling type and length of residence). It has been found that it is affected to an important extent by the attitudinal variables such as complaints.

Railway Noise Exposure-response Model based on Predicted Noise Level and Survey Results (예측소음도와 설문결과를 이용한 철도소음 노출-반응 모델)

  • Son, Jin-Hee;Lee, Kun;Chang, Seo-Il
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.21 no.5
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    • pp.400-407
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    • 2011
  • The suggested method of previous Son's study dichotomized subjective response data to modeling noise exposure-response. The method used maximum liklihood estimation instead of least square estimation and the noise exposure-response curve of the study was logistic regression analysis result. The method was originated to modeling community response rate such as %HA or %A. It can be useful when the subjective response was investigated based on predicted noise level. It is difficult to measure the single source emitting noise such as railway because various traffic noise sources combined in our life. The suggested method was adopted to model in this study and railway noise-exposure response curves were modeled because the noise level of this area was predicted data. The data of this study was used by previous Ko's paper but he dealt the area as combined noise area and divided the data by dominant noise source. But this study used all data of this area because the annoyance response to railway noise was higher than other noise according to the result of correlation analysis. The trend of the %HA and %A prediction model to train noise of this study is almost same as the model based on measured noise of previous Lim's study although the investigated areas and methods were different.

A Study on the Effect of Variables on Aircraft Noise Annoyance Response (항공기 소음 성가심 반응에 영향을 미치는 변수에 관한 연구)

  • Lee, Ki-Jung;Lee, Kun;Chang, Seo-Il;Son, Jin-Hee
    • Journal of Korean Society of Environmental Engineers
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    • v.29 no.3
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    • pp.341-347
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    • 2007
  • For the purpose of finding how aircraft noise annoyance response is affected by variables when noise survey is performed, the questionnaire survey is conducted around the Gimpo International Airport in Seoul, Republic of Korea. This residential area is exposed to the aircraft noise and road traffic noise, simultaneously. Research areas are classified according to three different aircraft noise exposure levels expressed in WECPNL, under 75, between 75 and 80, and above 80 WECPNL, on aircraft noise map. The 7-step numerical magnitude with verbal category scales is used to measure the annoyance level. This survey suggests that aircraft noise annoyance is not affected to an important extent by other noise sources(road traffic noise, community noise) and demographic variables(sex, age, education, occupation, dwelling type, length of residence).