Journal of ILASS-Korea (한국분무공학회지)

Institute for Liquid Atomization and Spray Systems-Korea (한국분무공학회)
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Air Pollutant Emission Characteristics of a Light Duty Diesel Vehicle Affected by Road Infrastructure Improvement and Traffic flow Changes

도로 기반시설 개선과 교통흐름 변화에 따른 소형 경유자동차의 대기오염물질 배출특성

  • 길지훈 (국립환경과학원 교통환경연구소) ;
  • 이태우 (국립환경과학원 교통환경연구소) ;
  • 이상은 (국립환경과학원 교통환경연구소) ;
  • 정성운 (국립환경과학원 교통환경연구소) ;
  • 윤보섭 (국립환경과학원 교통환경연구소) ;
  • 김정수 (국립환경과학원 교통환경연구소) ;
  • 최광호 (남서울대학교 교양과정부)
  • Received : 2016.11.20
  • Accepted : 2016.12.19
  • Published : 2016.12.30
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Abstract

Changes in road infrastructure affect driving patterns and pollutant emission characteristics. we analyzed the changes in driving patterns and pollutant emission characteristics of the driving route via measured driving patterns at year 2009 and 2016. Since 2009, there has been an increase in population and traffic demand, including residential areas and industrial facilities. Traffic conditions were improved such as the opening of the highway Inter-Change to Seoul and the construction of underground driveway. As a result, the average vehicle speed increased. More detail comparisons have made on the changes of the underground driveway section and the crossroad section, which are expected to have significant changes in the transportation infrastructure. The vehicle speed distribution of the underground driveway changed from low speed to high speed, and the increase of the time spent at the high speed and high load caused the increase of NOx emissions. The vehicle speed also increased at the crossroad section, and the consequence NOx and $CO_2$ emissions decreased. It is mainly because the decreased time spent at idle, which results from the proper traffic demand management at this area.

Keywords

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