Journal of Korean Society of Transportation (대한교통학회지)

Korean Society of Transportation (대한교통학회)
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Spatio-temporal Analysis of Freeway Emissions for Establishing Public Health Policies Based on Transportation

교통기반 공공보건 정책 수립을 위한 고속도로 차량배출가스 시공간 패턴분석

  • LEE, Seol Young (Transportation and Logistics Engineering, Hanyang University) ;
  • JOO, Shinhye (Transportation and Logistics Engineering, Hanyang University) ;
  • YOUN, Seok Min (Transportation and Logistics Engineering, Hanyang University) ;
  • OH, Cheol (Transportation and Logistics Engineering, Hanyang University)
  • 이설영 (한양대학교 교통.물류공학과) ;
  • 주신혜 (한양대학교 교통.물류공학과) ;
  • 윤석민 (한양대학교 교통.물류공학과) ;
  • 오철 (한양대학교 교통.물류공학과)
  • Received : 2016.01.25
  • Accepted : 2016.07.28
  • Published : 2016.10.31
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Abstract

Vehicle emissions have been known as a critical factor to give a negative impact on the public health. In particular, particulate matters(PM) and NOx are highly related with respiratory diseases such as asthma. This study aimed at analyzing spatio-temporal patterns of PM and NOx generated from urban freeway traffic. MOVES, which is a well-known emission analysis tool presented by US Environmental Protection Agency(EPA), was applied to estimate PM and NOx based on traffic volume and speed data obtained from Seoul Outer Ring Expressway during January~June, 2012. K-means clustering analysis was used for categorizing the Level of Vehicle Emissions(LOVE) to support more systematical identification of the significance of emissions. Then, spatio-temporal analyses of estimated emissions were conducted by LOVE. Finally, this study proposed a set of strategies to reduce both PM and NOx to enhance public health based on analysis results.

차량배출가스는 대기오염을 유발하는 주요 요인인 것으로 알려져 있으며, 배출가스 감소를 위한 다양한 정책수립 및 기술개발이 활발히 진행 중이다. 이에 본 연구는 차량의 배출가스 중 호흡기 질환에 특히 유해한 것으로 알려진 질소산화물($NO_x$)과 초미세먼지($PM_{2.5}$)를 대상으로 시공간적 배출량의 패턴을 분석하고 교통기반 공공보건 증진 방안을 제시하였다. 서울외곽순환고속도로를 공간적 분석범위로 설정하고 2015년 1월부터 6월 사이에 수집된 속도와 교통량 자료를 기반으로 배출계수를 이용하여 거시적 모형을 통한 차량배출가스 발생 총량을 추정하였다. 추정된 배출가스 자료에 군집분석을 적용하여 차량배출가스 수준(Level of Vehicle Emission)을 정의하였으며, 평일 차량배출가스 발생량의 물질별 시간대별 공간별 패턴을 분석하였다. 이를 바탕으로 교통기반 공공보건 정책방안을 교통계획 및 교통시설물, 공공보건 정보, 교통운영 및 관리 측면으로 나누어 제시하였다. 본 연구에서 제시한 차량배출가스 분석방향 및 전략은 공공보건 정책 마련에 기여할 것으로 판단된다.

Keywords

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