Research On Risk Management Of Pedestrian Evacuation In Metro Stations In Emergency Situations Based On Anylogic

In recent years,the network layout of subways gradually formed in major and medium-sized cities across the country has attracted a large number of subway passengers.With the continuous increase of subway passenger flow,major lines and stations will gather a large number of people during peak periods.However,due to the fact that most subway stations are Buried deep underground and closed and small,once an emergency occurs,not only is it easy to cause a serious injury,but after an emergency occurs,in a closed and small space,the crowd is likely to breed fear and anxiety,which will lead to chaos and cause serious Crowded stampede accident.Therefore,the problem of pedestrian evacuation in subway stations in emergencies needs to be solved urgently.First of all,this article takes Tianfu 5th Street Station as the research background,and through field research and literature reading,summarizes the walking behavior of pedestrians in the station under normal conditions and the behavior of evacuation of pedestrians from various parts of the station to safe areas on the ground in emergencies.What’s the difference,and analyzed the various factors that affect pedestrian evacuation in emergencies,and made some improvements to the original social force model based on this research,and established a pedestrian evacuation model in subway stations in emergencies.Second,the pedestrian evacuation environment was constructed using the relevant parameters obtained from field research and literature citations,the pedestrian evacuation logic was constructed based on the pedestrian evacuation model of subway stations in emergency situations,and the Anylogic software based on the social force principle as the underlying logic was used as a simulation tool.To carry out simulation simulation,by analyzing the simulation results,the risk area of pedestrian evacuation in subway station and the responsible body for risk prevention are identified in emergency situations.Third,based on the domestic and foreign research results on the level of pedestrian traffic services,a risk evaluation system for pedestrian evacuation in subway stations under emergency conditions was established.Anylogic was used to collect pedestrian density during the entire evacuation process in each risk area,and then combined with the risk evaluation system and risk Regional pedestrian density conducts risk assessment on evacuation risk areas.Fourth,starting from the three responsible entities for risk prevention,the corresponding risk management and control measures were respectively proposed,and the second simulation was performed through the proposed management and control measures to change the parameters to simulate and verify the effectiveness of the risk management and control measures.Although different subway stations exhibit different scales and layouts due to their different locations and functions,their composition and functional area settings are roughly the same.Therefore,this paper selects a representative subway station as the research background,and through studying the Pedestrian evacuation risk management and control measures in stations in emergencies can be popularized to most general subway stations.Through research,it is found that the risk areas that need to be paid close attention to in the process of pedestrian evacuation in subway stations in emergencies include: platform level waiting area,each stairway connecting the platform level and the station hall level,exit gates,Main entrances and exits,corners of walls or facilities,obstacles,sudden narrowing of passages,etc.This paper proposes corresponding risk control measures from three risk prevention entities,and conducts a second simulation based on the change parameters of the control measures.By comparing the results of the two simulations,it proves that the risk control measures are effective.