Research On Evacuation Method Of Large Passenger Flow In The Urban Rail Transit Station

With the rapid development of urban public transportation,rail transit plays a more and more important role,however,the phenomenon of large passenger flow has become a thorny problem which needs to be solved in the process of rail transit.From the definition of large passenger flow,that increases in a short time to bring the huge pressure for evacuation.This is no longer the only rail station evacuation will be able to complete the task.The irregular site movement of the flow will affect the evacuation,and even cause some security risks.By analyzing the characteristics of passenger flow,and on the basis of the facilities to take corresponding measures to evacuate.And for the train on the line,only by shortening the intervals,enhancing the capacity is not enough,the need of traffic and within the corresponding to the different levels of large passenger flow for the evacuation planning measures have become the subject of today's research.This paper is based on the sudden large passenger background.Initially,it carries on the analysis of the pedestrians' characteristics which are in the rail transit station from three aspects that psychology behaviors and movements,then from the rail station facilities,it gives the parameter index of the facilities,also analyzes the impact that the large passenger flow for the passing capacity in the rail station.On the basis of facilities layout and capacity,paper proposes the evacuation strategy,and divides the sudden large passenger flow into early warning classification,which is made up of three districts to monitor and the dynamic flow of passenger flow to stratify,informing the message of the sudden large passenger flow in time.During the study of rail station evacuation process,this paper proposes the simulation based on Anylogic simulation software,to find out the bottleneck node,by analyzing the bottleneck of passenger flow,we hold the point that there are some interference among pedestrians and between pedestrians and obstacles,so the passenger evacuation model is established,meanwhile we make it out that the pedestrians' paths which accords to the layout of service facilities.According to the established evacuation ideas,adjust the train formation and the numbers.Combining the transverse plane fault of large passenger flow with the shortest time interval of the train,the optimal proportion model of the train is established,and reformulates train plan.This paper also takes on the connection of the rail transit and the public bus system of passenger evacuation,which introduces from two aspects,bus dispatching strategy and the connection mode.It also analyzes the different connection mode under the background of large passenger flow,Finally,by analyzing the example,the large passenger flow evacuation model proposed in this paper proves to be more closer to the reality and more reasonable.