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2022 Vol.40, Issue 3 Preview Page

Article

A Study on Atmospheric Dispersion Modeling Methodology for Traffic-Related Air Pollutions in Korea

국내 도로부문 오염물질의 공간적 확산을 고려한 대기오염농도 분석방법론 연구

Daejin KIM1*
,
Yunkyung BAE2
,
Sangrok KIM3
김 대진1*
,
배 윤경2
,
김 상록3
1Assistant Professor, Department of Urban Planning and Real Estate, Gangneung-Wonju National University, Gangneung 25457, Korea
2Research Fellow, National Infrastructure Research Division, Korea Research Institute for Human Settlements, Sejong 30147, Korea
3Associate Research Fellow, National Infrastructure Research Division, Korea Research Institute for Human Settlements, Sejong 30147, Korea
1강릉원주대학교 도시계획부동산학과 조교수
2국토연구원 국토인프라연구본부 연구위원
3국토연구원 국토인프라연구본부 부연구위원
*Corresponding Author
30 June 2022. pp. 380-399
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Abstract

This study is to develop a modeling framework for predicting near-road pollutant concentrations to evaluate the environmental benefits of road construction in Korea. Based on the literature review, AERMOD-based atmospheric dispersion modeling method was applied to predicting near-road pollutant concentration levels in Korea. The modeling method integrates the processes of generating input data (e.g. transportation demand, meteorology, road network, etc.), estimating link emissions, predicting pollutant concentrations, and estimating the environmental benefits. The case study predicted the changes in the pollutant concentrations after the constructions of projected highways (e.g. Seoul-Yangpyeong and Jecheon-Yeongwol Expressway), and then it evaluated the environmental benefits of constructing highways in terms of annoyance cost. This study evaluated the feasibility of air quality modeling analysis based on the USEPA’s recommended dispersion modeling tool (i.e. AERMOD) for the environmental impact assessments of road construction in Korea, based on Python programming incorporating advanced modeling algorithm. It is expected that the modeling system developed in this study can be applied to the environmental impact assessment processes of transportation projects in Korea.

Keywords
air quality
dispersion modeling
environmental impact
pollutant concentration
road construction

본 연구는 도로사업으로 인한 대기오염물질의 공간적 확산행태를 분석하고 관련된 편익을 추정하는 체계적인 방법론을 제시하는 것을 목표로 한다. 이를 위해, 관련된 연구를 선도하고 있는 미국의 연구 사례를 고찰하고, 국내에 적용가능한 방법론을 모색하였다. 구체적으로 본 연구는 AERMOD에 기반한 대기확산 모델링 방법론을 제시하였으며, 효율적인 모델링을 위해 자동화된 Python 프로그램을 개발하였다. 본 연구에 제시된 대기오염물질 공간적 확산 분석 모델링 툴은 ｢서울-양평 고속도로｣와 ｢제천-영월 고속도로｣ 사업에 적용되었으며, 도로 사업에 따른 대기오염농도 변화를 분석하고, 이를 바탕으로 사업 시행에 따른 효과를 분석하였다. 사례 분석결과, 도로 사업으로 인해 일부 지역(특히 신규 도로 사업구간 주변)에서는 오염물질 농도가 증가할 수 있으나, 대다수의 지역은 오염물질 농도 감소로 인한 편익이 발생할 것으로 나타났다. 대기오염 농도 변화 추정 결과를 바탕으로 고속도로 사업 시행에 따른 환경편익을 추정하였다. 지불용의액에 기반한 편익 추정(성가심비용) 결과 연간 약 22-1,084백만 원의 편익이 발생하는 것으로 나타났다. 본 연구는 대기확산 모델링에 기반한 국내 도로사업의 환경편익 추정 가능성을 제시하였으며, 향후 국내 도로사업 평가체계(예: 예비타당성조사 제도)에 정책적 평가지표로 활용될 수 있을 것으로 기대한다.

키워드
대기확산 모델링
대기오염 농도
도로사업
환경편익
예비타당성조사제도
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Information
  • Publisher :Korean Society of Transportation
  • Publisher(Ko) :대한교통학회
  • Journal Title :Journal of Korean Society of Transportation
  • Journal Title(Ko) :대한교통학회지
  • Volume : 40
  • No :3
  • Pages :380-399
  • Received Date : 2022-01-25
  • Revised Date : 2022-02-18
  • Accepted Date : 2022-05-12
  • DOI :https://doi.org/10.7470/jkst.2022.40.3.380
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