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도로교통소음과 대기질 및 도시 형태간의 관계 파악을 위한 방법론 고찰
류훈재(Hunjae Ryu),김윤희(Yunhee Kim),전범석(Bum Seok Chun),박인권(In Kwon Park),장서일(Seo Il Chang) 한국소음진동공학회 2015 한국소음진동공학회 학술대회논문집 Vol.2015 No.4
In urban areas, continuous monitoring and management of urban environmental noise and air quality are increasingly important for people’s health impact and well-being. Especially, the road traffic, which is one major indicator of urban forms such as population, building, transportation and land-use, etc., is the same emission source of urban noise and air quality. Furthermore it is required to figure out integrated relationship because the road traffic and other urban form indicators are interrelated. Therefore, this study aims to investigate the relationship among road traffic noise, air quality and urban forms, and to provide and consider the methodology. Fulton County in Georgia state of USA, where is the principal county of the Atlanta metropolitan area, is selected for this study. First, the noise level exposed to residents and the concentration of PM2.5 are calculated as dependent variables. Second, the representative values for noise level, the concentration of PM2.5 and urban form indicators are averaged over grid cells of 200×200m for Fulton County. And then, the relationship between noise and urban forms, and the relationship between air quality and urban forms are respectively estimated by spatial statistical model. In addition, the integrated relationship among them is analyzed by seemingly unrelated regression model. This well-estimated model could be useful for preliminary urban planning and sustainable environmental management, and it could make it possible to design integrated and systematic planning.
단기간 소음도의 대표성 확보를 위한 소음도 추출기법 연구
류훈재(Ryu, Hun Jae),고준희(Ko, Joon Hee),장서일(Chang, Seo Il),이병찬(Lee, Byung Chan) 한국소음진동공학회 2012 한국소음진동공학회 논문집 Vol.22 No.12
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.