Study On Safety Evacuation In Subway Transfer Station

The transfer station of urban rail transit has the characteristics of large passenger flow,high fluidity,underground space closeness,internal mutual connection and complex structure,which lead to complicated fire scene and high danger,many evacuation routes in emergency,too long evacuation distance,and the safety of evacuees can not be guaranteed.Therefore,evacuation of transfer stations has become a hot research topic.Through investigating the fire protection devices of Chongqing rail transit transfer station,the author designs a questionnaire for the safety evacuation characteristics of transfer station personnel.The questionnaire involves the basic characteristics of the personnel in the transfer station,the passenger’s transfer effect in the transfer station,the passengers’ familiarity with the facilities in the transfer station,and the evacuation ability of the personnel in emergency in four aspects.The questionnaires were issued on the Internet,and 388 valid questionnaires were collected.The questionnaire survey showed that:(1)Male passengers are much more aware of fire safety knowledge than women;young people do not know enough about fire fire knowledge,and there are fewer groups receiving regular fire safety training.(2)There is congestion in the transfer process,and the spatial structure and distributary layout of the transfer station have a certain influence on the transfer efficiency;the passengers’ ability to identify the transfer signs is insufficient.It is suggested to strengthen the publicity and explanation of the transfer guide signs and the passenger transfer ability training.(3)In an emergency,most passengers are able to queue up in line according to the requirements and handle the loss of property rationally;only a few passengers can maintain a calm state of mind,and lack the training and experience of fire theory.(4)Through the analysis of factor correlation,the evacuation behavior ability in emergency is related to gender,age and fire safety quality.It is suggested that fire safety education should be carried out according to the characteristics of different people.Through the field research of chongqing transfer station,we can find out the changing route and the location of traffic jam.Based on the analysis of the passenger flow video of the subway station monitoring center of chongqing railway station,the actual traffic flow of the security gate,brake machine,escalator and transfer section was obtained.The calculation method of the maximum number of evacuees in the transfer station is put forward.According to the data contrast design value obtained by the passenger traffic video,it is found that the capacity of the exit gate is not matched with the current passenger flow,and it will become the bottleneck of evacuation during the evacuation process and influence the evacuation efficiency.Taking the subway transfer station of the Liang Lukou of Chongqing as an example,through the analysis of fire performance-based analysis,the evacuation route of people under different fire conditions is discussed,and a reasonable scheme to ensure the safe evacuation of the personnel is put forward,it also explores the feasibility of evacuating fire layer personnel by means of transfer channels and evacuating passengers from unburned platform to adjacent stations.