Simulation Of Emergency Evacuation In Departure Hall Of Terminal Based On Social Force Model

With the development of global economy,various emergencies are becoming more and more frequent,and the public security situation is facing new challenges.Airport,as a large public place,is very easy to attract attention from all walks of life and has strong social influence after the emergency.In recent years,the air passenger transport volume in China is large,the growth rate is fast,and the passengers in the departure hall are generally relatively dense.The risk of emergency is increasing day by day,so we need to pay enough attention to the safety evacuation.Therefore,it is of practical and theoretical significance to study the problems existing in the evacuation of departure hall of terminal building and optimize the evacuation process.After the emergency,it is difficult to manage the evacuation process because of the difference of pedestrian behavior characteristics.Especially at the exit,the evacuation order is easy to be confused.In addition,although there are many exits for safe evacuation,the guidance level monitoring is difficult due to the management is not in place and the environment is complex.Therefore,there is still a lack of theoretical understanding in the monitoring and model of exit order,the process of evacuation guided by signs and evaluation.In order to realize the influence of competition order and guidance on evacuation,this paper classifies the current evacuation simulation computer model,and focuses on the detailed description of the social evacuation simulation model and anylogic platform.From the two levels of pedestrian characteristics and environmental characteristics,the factors influencing emergency evacuation are summarized.In terms of pedestrian characteristics,the paper presents a mathematical model of pedestrian exit competition by modeling and analyzing the pedestrian competition and companion behavior.Based on the mathematical model,a simulation model based on anylogic platform is established.The evacuation conditions of pedestrians with different competition degree(competition factor)and different partner scale are analyzed.The relationship between competition and evacuation efficiency and the most favorable competition factor 0.25 are determined.In terms of environmental characteristics,a model is proposed and established based on anylogic platform to meet the pedestrian evacuation.The influence of single exit failure problem on evacuation is analyzed with different guidance level and different location.The results show that the role of guidance on evacuation is not all proportional,and the best guiding level is about 80%.In addition,when large-scale crowd evacuation,considering the phenomenon of high degree of competition and serious congestion at the exit,this paper also puts forward some suggestions on setting reasonable diverters at the exit.The rationality of the proposal is verified by anylogic platform,which effectively shortens the evacuation time and eases the competition order.Through the research of this paper,the proposed theory and model research content is built on anylogic platform for simulation,which provides theoretical support for the safety management of departure hall of terminal,and provides some reference for the follow-up study of pedestrian emergency evacuation.