| The outbreak of COVID-19 in early 2020 has greatly affected China’s economic development,the operation of public transport and the way people travel.As one of the main ways for people to travel,subway bears important responsibilities in urban public transportation.Due to the particularity of novel Coronavirus transmission,there are still certain risks in operation during the epidemic.However,the normal operation of the subway is of great significance to the restoration of the city and even the social order.Therefore,it is of practical significance to study the organization of passenger flow under the condition of epidemic prevention to guide the organization of subway operation under special conditions.Taking Dalian North Railway Station as an example,the reliability of the software is verified by comparing the actual observed data with the simulation data.And in the modeling environment,the simulation situation is divided into two categories,one is the non-epidemic situation of passenger flow evacuation,the other is the epidemic situation of passenger flow evacuation,and then the influence factors of the two cases are analyzed.By means of changing composition,stair width and personnel turning point location simulation comparison,found that the composition and the turning point position will have minimal impact on evacuation time,increase the stairs width can improve the efficiency of scattered,but the increase of the transitional stair width not only affects the evacuation efficiency,also increases the cost of construction.Finally,comparing various influencing factors,it is found that the appropriate stair width has the greatest influence on evacuation efficiency in non-epidemic situation.In the case of epidemic situation,when the number and spacing of personnel are controlled at the same time,among the two evacuation plans designed,plan 1 is to get off directly at this door after waiting in the carriage for a certain period of time.Plan 2 is to get off at the fixed door after waiting in the carriage for a certain period of time.The comparison of the two schemes shows that scheme 1 takes less time and has better results. |