Risk Assessment of Rail Transit Equipment Failure Disaster Chain Based on the Complex Network

As urban rail transit disasters present network transmission characteristics, it is imperative to identify the transmission mode and key nodes between disasters to prevent and control urban rail transit system risks. However, the failure of urban rail transit equipment, as the most common and most types of failure disaster events during the operation of urban rail transit, has not been deeply studied and analyzed. Therefore, this paper uses the inductive analysis method and the catastrophe chain transmission theory to construct the evolution of the rail transit equipment failure disaster chain Model and complex network of rail transit equipment failure disaster transmission evolution. Based on complex network theory, collect and summarize various urban rail transit accidents related to equipment failures at home and abroad in recent years, study the chain transmission law of rail transit equipment failure events, and use various related indicators to determine the importance of network nodes. The vulnerability of the edge and the edge are comprehensively analyzed, and the risk value of each rail transit equipment failure disaster chain is obtained. Through quantitative analysis, the risk assessment of rail transit equipment failure disaster chain provides a basis for rail transit operation safety assurance and disaster prevention and control.