Study on the Propagation Mechanism of Large Passenger Flow in Urban Rail Transit

In order to reduce the impact of normal large passenger flow on rail transit stations, trains and operations, a qualitative and quantitative approach is adopted to analyze the process of propagation and dissipation of large passenger flow on rail transit lines. Based on the timetable of trains and the AFC swiping card data of passengers entering and leaving the station, the connection between passengers and trains in space and time is analyzed. The formation and spread of large passenger flow are analyzed from several aspects: the number of arriving passenger flow, the number of boarding passengers and alighting passengers, retention rate, train capacity and train full load rate, so as to study the mechanism of large passenger flow propagation based on train capacity constraints. Finally, combined with the specific route, it can be concluded that the spread of large passenger flow in time and space is continuous, and the large passenger flow at a single station will affect the travel of passengers at subsequent stations.