Construction And Simulation Optimization Of Emergency Evacuation Model For Licun Subway Station

The subway undertakes the important task of conveying personnel.with the gradual increase of passenger flow,people pay great attention to its safety.Qingdao Metro Licun Station is the largest transfer station in Qingdao,carrying capacity of lines 2 and 3 is large,especially in the morning and evening peak hours,so there is a greater security risk.In this paper,combined with the characteristics of personnel evacuation,facility distribution and environmental characteristics of Licun Station,the emergency evacuation simulation model of Licun Station is constructed by using AnyLogic software,the evacuation process is analyzed,the evacuation bottleneck is found,and the improvement scheme is put forward.finally,reference suggestions are put forward for the evacuation plan of Licun Station.The main work of this paper is as follows:(1)The questionnaire of subway emergency evacuation behavior is designed,and many factors such as behavior characteristics,environmental factors,personnel interaction and so on are designed.The reliability of the questionnaire data is analyzed.By using SPSS software and logistic regression analysis,the relationship between subway evacuation factors and evacuation behavior is analyzed,and the main factors affecting subway emergency evacuation are found.(2)The evacuation time of Licun station is calculated by the theory of safety evacuation,and the safety hidden danger of Licun station is predicted.The emergency evacuation simulation model of Licun subway station is constructed by using Anylogic software,and the simulation experiment is carried out on the model.The simulation results show that the evacuation time of all personnel in Licun subway station is 396s,and the simulation result is close to the evacuation time calculated by the theory of safety evacuation,which proves the feasibility of the emergency evacuation model of Licun station.The evacuation time does not conform to the 360s safety evacuation time stipulated in the Metro Design Code,indicating that there is a safety hidden danger in Licun Station.(3)Analyzing the evacuation process in the station from the aspects of evacuation time and evacuation density,find the bottleneck factors in the evacuation process,establish the optimal evacuation plan according to the evacuation bottleneck,and analyze the feasibility of the optimization scheme.(4)The optimized evacuation scheme is simulated,and the optimized evacuation time is 297s.Meet the subway safety evacuation standards.Reasonable suggestions are put forward for the formulation of personnel evacuation plan and in-station design planning in Licun station.In this paper,the evacuation simulation of Licun station is carried out by AnyLogic simulation software,which provides a new idea for the safe evacuation of Licun station,and puts forward the optimization scheme according to the evacuation bottleneck,which has high practical value.