Access and monitor vulnerability of urban metro network system in China

It is a transition period for UMNSs in China, as operation mode is changed from single line operation to network operation. With the booming construction of UMNS in many big cities, interdependence and cascading relationship is more and more clear. Impropriate handled of failures in one line would induce malfunction in related lines or even cascade the whole operation network. This research takes UMNS as object and focuses on vulnerability analysis of it. The objectives of this research contain: exploring the connotation and formation mechanism of vulnerability; identifying the relationship between characters of the network and vulnerability of UMNS; assessing physical, structural, and social functional vulnerability of UMNS; establishing visualized dynamic monitoring system and case study.