Research on the Key Section Identification of Urban Rail Transit Network

In recent years, urban rail transit has developed rapidly, urban rail transit represented by Beijing, Shanghai, and Guangzhou has gradually changed from a single line operation to a basically networked operation. At the same time that urban rail transit achieves network operation, the stations in the urban rail transit are closely connected. When emergencies such as terrorist attacks and intermittent power outages occur in the network, it is easy to cause the passengers in the road serious property and personal losses. At this time, it is particularly important to reduce the vulnerability of the network. The weak links in the network often pose a huge threat to the vulnerability of the network. Finding the weak links in the network is of great significance to reduce the vulnerability of the network. Therefore, this article takes the urban rail transit network as the research object, and uses qualitative and quantitative analysis methods to find out the method of identifying the weak links in the network, that is, the key sections, to provide a strong basis for reducing the vulnerability of the network.