A STUDY ON APPLICATION OF VARIABLE SET TRAIN FOR URBAN TRANSIT SYSTEM

초록

Today, the size of economy is very quickly developing in Korea. The traffic volume increases suddenly. The moving hour is coming to be long. Specially, the traffic problem is serious in the city. Case of metropolis of Seoul, Busan, Daegu, Incheon, local autonomous entities construct the urban transit system to solve traffic problems. Each local autonomous entity obtains the affirmative effect which activates a public transportation. The organization system of train operating in each local autonomous entity is as following: 10 carriages on 1∼4 line, 8 carriages on 5∼7 line and 6 carriages on 8 line in Seoul. Trains are operated as fixed set system independent of the traffic demand by the timetable. In rush hour, the traffic demand is disposed with the method which regulates the headway. There are problems that the energy wastes and waiting time increases in off-hour. Therefore, the variable set system of train needs to be developed to confront flexibly for traffic demand. The cost-effectiveness of the variable set system of train is investigated in the paper.