Model Of Pedestrian Flow And Facility Layout Optimization For Rail Transit Stations

As an important node of the rail transit network,rail transit station is not only directly affected by the passengers’ intuitive feeling to the station,but also indirectly determines transport efficiency of the whole rail transit system.In actual operation stage,due to the constraints of the station space,the complexity of streamline,the irrational of the facility layout,the passengers’ aggregation and evacuation in the rail transit station often suffers a lot of obstacles.So accurate analysis of passenger flow characteristics in rail transit station,better and scientific arrangement of various facilities and organization of the pedestrian enter and exit station streamline and transfer streamline play a significant meaning to ensure the safety and convenience of passengers to complete the process of go in and out of station,improve the efficiency of the aggregation and evacuation of the station,reduce the congestion and even eliminate the congestion,improve the transport capacity of the whole rail network.This paper starting from the analysis of the basic characteristics of all kinds of aggregation and evacuation facilities and passenger streamlines;combining the investigation of the actual situation in the rail transit station,the paper analyzed characteristics of pedestrian in various facilities and characteristics of channel and queuing facilities are analyzed from the respect of macroscopic traffic flow.On the basis of analysis,the paper introduces the formation and identification of the bottleneck of the railway station;Then established the pedestrian traffic wave model in facilities、shunt points、confluence points and series facilities system from the respect of mesoscopic by using traffic wave theory in traffic flow theory and using VISSIM micro simulation to verify the accuracy of model,which can be used to evaluate the pedestrian flow in station.Finally,based on the simulation,this paper makes a comparison of the layout of the parallel and vertical Automatic Fare Collection System under different flow in the rail transit station,and give suggestion to the layout of the Automatic Fare Collection System under different flow and position.