Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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A Study on Sampling Techniques to Assure the Representativeness of Short-term Equivalent Noise Level

단기간 소음도의 대표성 확보를 위한 소음도 추출기법 연구

  • Ryu, Hun Jae (Department of Energy and Environmental System Engineering, University of Seoul) ;
  • Ko, Joon Hee (Department of Energy and Environmental System Engineering, University of Seoul) ;
  • Chang, Seo Il (Department of Environmental Engineering, University of Seoul) ;
  • Lee, Byung Chan (Department of Environmental Engineering, Korea National University of Transportation)
  • Received : 2012.09.07
  • Accepted : 2012.11.02
  • Published : 2012.12.20
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Abstract

The purpose of this study is to present a guideline to design a short-term manual measurement of environmental noise level, which is more economical and flexible, but less representative than long-term automatic measurement. The proposed guideline can provide the number of measurement times and the length of measurement term required to secure the extent of the representativeness. The data was collected at 4 sites located in Seoul and at 4 sites located outside of Seoul. The probabilities for five-minute equivalent noise levels, Leq, 5min, to stay in an error range from the quarterly representative noise level were used to evaluate sampling techniques. The probability analysis of the daytime period showed that the noise levels measured between 10 am and 2 pm and between 9 pm and 10 pm have the probabilities higher than 60 %. On the other hand, even for the same length of total measurement time, increasing the number of random samplings results in higher probabilities than increasing the length of measurement term.

Keywords

References

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Cited by

  1. The Spatial Statistical Relationships between Road-traffic Noise and Urban Components Including Population, Building, Road-traffic and Land-use vol.24, pp.4, 2014, https://doi.org/10.5050/KSNVE.2014.24.4.348