서울시 녹색교통지역 확대에 따른 도로이동오염원 초미세먼지 감소효과 추정

초록

Low-emission zones are being expanded worldwide. The green transportation zone operated by the Seoul Metropolitan Government will also be expanded gradually. To implement the appropriate policy, a prior impact evaluation is required before expanding and operating the system. This study aims to estimate the reduction in fine dust emissions from traffic flow and road pollution sources under the green transportation zone expansion plan, and to propose corresponding policy support measures. Using detailed vehicle registration data, O/D data was subdivided by car type, fuel type, grade, and DPF attachment, and the green transportation zone expansion plan was applied to the travle demand analysis network. The analysis assumed that restricted vehicles were not allowed to enter the restricted area and that travel patterns would not change. When calculating fine dust emissions, formulas were applied by grade, fuel type, and model year, with a detailed analysis considering the efficiency of emission reduction devices attached to grade 4 and 5 vehicles. The analysis of Seoul, Gyeonggi, and Incheon on a wide-area basis showed a decrease in VKT and fine dust in the restricted areas. Notably, when the use of Grade 5 vehicles was restricted across Seoul, fine dust levels dropped by 46.20%, showing that simply restricting these vehicles can greatly help reduce air pollution.

키워드