Journal of Korean Society of Transportation ISSN:1229-1366(Print) 2234-4217(Online) 대한교통학회지

Countries around the world are actively seeking solutions to the climate crisis, and the Korean government is also developing detailed policies to practice carbon neutrality by 2050. One of the eco-friendly policies in the transportation sector is the abolition of old diesel cars, and there are various ways to reduce them, but this study is a strategic plan by improving the environmental improvement charge imposed at the holding stage of the ca taxes. The coefficient applied to the environmental improvement charge was revised in 2010, and it has not been able to respond to the rapid changes in the automobile industry and technology over the past 10 years, and countermeasures against fine dust. As a result of analyzing data from automobile inspection stations conducted by the Korea Transportation Safety Authority to improve the application coefficient for environmental improvement charges, the PM concentration of trucks, older vehicles, heavy vehicles, long average mileage, and older vehicles of 10 years or more appeared to increase. As a plan to improve the environmental improvement charge, the characteristic that the same coefficient is applied to vehicles over 10 years old is divided into sections by vehicle year and applied in proportion to PM emissions. And since vehicle weight has a major effect on PM emissions, it is necessary to add a weight (kg) variable.