Urban transit is a large scaled complex system which combines rolling stocks, power supply, signalㆍcommunications, tracks & stations etc. KRRI develops nine key devices since July, 2007 as a part of the second phase of project on the standardizati...
Urban transit is a large scaled complex system which combines rolling stocks, power supply, signalㆍcommunications, tracks & stations etc. KRRI develops nine key devices since July, 2007 as a part of the second phase of project on the standardization of urban rail transit system, which include information-communication system, station facilities, AC-DC current electric power system in urban transit. We promote the project under two directions, i.e. user-customer oriented standardization and strategic standardization for leading technologies in urban transit. In this paper, we present development plan of these key systems in view of system life cycle based on system engineering standards KSX ISO/IEC 15288 which supplies the common fundamental frame to describe the life cycle of artificial systems. System engineering process of KSX ISO/IEC 15288 are helpful to efficiently develop those key devices, although it is difficult to apply the standard identically to the key devices with the varieties and characteristics.