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김용기(Kim Yong-Ki),목재균(Mok Jai-Kyun),윤희택(Hyoon Hee Taek),이재영(Lee Jae Young) 한국철도학회 2005 한국철도학회 학술발표대회논문집 Vol.- No.-
After 1974 an EMU, which is the first line opened, the car"s term of endurance is introduced, End of life on the step, gradually the rate of cars out of service are increasing. In the country, we consider about recycled source, aspects of social economic of cars out of service and so on, treat efficiently and reasonable. According to research first we make investigations about the present situation and the actual condition of cars out of service then we should lay out schemes efficiently.