Simulation Study On Emergency Evacuation Of Urban Rail Transit Stations Based On The Behavior Of Passengers

Urban rail transit is an important measure to relieve the pressure of ground traffic in major cities all over the world because of its less space occupation,huge capacity and environmental protection.Passenger flow and the scale of transit network extend continuously.Station is the important area for passenger to gather and distribute in urban rail transit system while there is a big security risk for high passenger flow density and complex streamline.It’s the key content in station operation organization to ensure that everyone can be evacuated to the safe position rapidly in emergency circumstances.It is of great significance in guaranteeing passenger safety to improve reasonable station emergency evacuation strategy considering station facilities and emergency situation.First,this thesis defines evacuation for urban rail transit station and analyses the characteristics and category of its application scenarios which reflects the importance and necessarity of evacuation plan.The station facility layout is analyzed and classified for its characteristics.Evacuation standards for urban rail transit station of China and the United States is compared and evaluated.Then,the influence factors and reaction mechanism of the pedestrian safety behavior is studied with pedestrian in the station being considered as the object.Based on the analysis of the characteristics of passenger behavior,this paper select a social force model which can reflect the characteristics of pedestrian behavior and the Anylogic simulation software based on social force model,Through the analysis of the accident data and the observation of the passengers in the station,Summed up three typical behaviors which the passenger would show in the process of escape: companion,pathfinding and Bottleneck port competition,Based on the particularity of the three kinds of behavior characteristics in the process of evacuation,proposed improve proposals to the model,and through the software to research and analysis the impact of the three kinds of behavior in the process of emergency evacuation.Finally,Fu Xing Men station is taken as an example to validate the model.By the project research of passenger behavior characteristic data,to example simulation analysis the emergency evacuation process in the case of the designation of maximum aggregation of the station.