Unexpected passenger flow propagation in urban rail transit network based on SIR model

With the upgrading of China’s comprehensive strength, many large-scale activities (such as large-scale cultural and sports activities, exhibitions, etc.) are frequently held in major cities, thus led to sudden accumulations and dissipation of large-scale passengers, and great impact on the urban public transport. It has become an urgent problem to make accurate analysis of the interaction between point, line and network, propagation path, scope and intensity of the unexpected passenger flow and to find the sticking point and weaknesses in the system.