Passenger Emergency Evacuation Model And Optimization Under Different Operating Conditions Of Subway Station Escalators

With the rapid development of my country’s economy,traffic problems have become increasingly prominent.The pressure of ground traffic has been fully allev iated due to the rapid development of the subway,which has become the main goal of the development of major cities in the world.In the event of an emergency,the quickly and e fficiently evacuation of passengers is the key to the evacuation of subway stations.Based on the theoretical research on the factors affecting passengers’ evacuation behaviour and the design and arrangement of escalators in metro stations in case of emergency,the basic information and behavioural characteristics of passengers were analysed according to the content of the questionnaire survey to determine the differential effects of different factors on evacuation behaviour,so as to provide support for the subsequent model construction and by constructing a mathematical model of emergency evacuation of passengers in the Big Wild Goose Pagoda metro station and by constructing a mathematical model and a simulation model,the influence of passenger evacuation behaviour characteristics on the emergency evacuation time under three different escalator operating conditions was investigated,and on this basis,an optimisation plan for the emergency evacuation model of the Big Wild Goose Pagoda Metro was designed.The results show that the factors with the highest correlation with passenger evacuation behaviour are age,gender,education level,familiarity with the metro station,knowledge of emergency evacuation and the influence of accident experience;according to the results of the questionnaire survey,the evacuation time of passengers in an emergency situation in the metro is divided into four modules,reaction time,walking time,passage time and detention time,among the three floor Escalator operating conditions,the up escalator to maintain upward,down escalator stop such conditions,evacuation efficiency is better,the mathematical model evacuation time is 287.14 s,the simulation model evacuationtime is 297 s,the error is only 3.43%,sudden emergency evacuation process,there is a large personnel evacuation bottleneck phenomenon,then the combination of stairs near the crowd evacuation side of the building escalator,the optimization effect is better,the optimization of The evacuation time is 260 s,which is 12.5%higher than the evacuation efficiency of the original scheme.Meanwhile,in the evacuation process,the relevant staff of the metro are needed to guide at each safety exit as well as the building escalator entrance,so that the passengers at the building escalator entrance can be evacuated quickly,thus improving the evacuation efficiency.