Simulation Research On Evacuation Ability In Metro Station

Metro has the large advantage of high volume, speedy, comfort, punctuality,safety, environmental conservation, etc., and also get over the issue of traffic jams inthe modern city in some ways, so the subway gains popularity. Because of thelimitation and specificity of the metro, the metro is more dangerous than thesuperficial fire, and has characteristics of evacuation difficulties and rescuedifficulties, so should avoid the happening of metro fire as soon as possible. Becauseof the specificity and harmfulness of subway fire, how quickly and safely passengerevacuation train passengers and platform in the subway to evacuation platform andreach the safety area has very important research significance when the subwayplatform starts emergency (fire, terrorism attacks, etc.). Subway station evacuationability and its simulation research not only provide data reference for metro designcode compiled, but also formulate and implement the emergency evacuation plan forthe subway operating company to provide theoretical basis and technical support.The content of this study is the evacuation ability of the subway station. Firstly,the metro station as well as the evacuation theory is studied, the categorization of thesubway station facilities and passenger flow are studied, the transfer form and thearrangement type of transfer station are studied. Secondly, research the influencefactors of evacuation behavior from physiological factors physiological factors andenvironmental factors in three aspects, and then study the safety evacuation time andsafety evacuation rules. Thirdly, the correlation personnel evacuation of the subwaystation is analyzed by using the method of questionnaire survey and statisticalanalysis, it is concluded that the related factors of the evacuation and related degree.Fourthly, research the micro and macro property of the underground pedestrian traffic,then through video observation and statistics analysis research the relationship ofspeed&density and density&flow of the stairs and escalators in subway station，the traffic capacity of the stair and escalator is analyzed through the engineering caseFifthly, using simulation software analysis on evacuation capacity of the subwaystation, the main statistical through stairs and escalators the number of peopleevacuation time and density, and the traffic capacity of the single staircase and mixed decorate stair is compared, then the crowd evacuation simulation is optimized, and itis concluded that the transfer stairs used as evacuation greatly improve the ability ofevacuation, at the same time and put forward some countermeasures for dealing withlarge passenger flow and fire smoke, then, proposed the way to improve the ability ofevacuation in the subway station.