Simulation And Optimization Of The Transfering Station Passenger Flow Organization In Subway Networks

By the end of February 2017,there are 27 cities in our country having metro lines,and having completed or planed the construction of urban rail transit network,metro construction is developing rapidly in recent years.Along with the growing of the length and the number of metro lines,the metro network is gradually formed,and the number of the transfer station is increasing.The formation of metro networks attracts more passenger flow,at the same time,transfer problems will be more and more highlighted.The transfer station is a key in the subway network nodes,influencing the entire network operation management and transportation efficiency,therefore research on the metro transfer station passenger flow organization in metro networks is very urgent and necessary.First,from the macro aspect,the main factors influencing passenger transfer were studied,the two main factors are network form and train operation organization.In addition,from the micro aspect,main factors influencing transfer passenger flow organization are passenger behavior characteristics,channel capacity and station capacity.Research of the influencing factors and organization of transfer passenger flow provides the certain reference basis for the choice of transfer efficiency evaluation index.Second,to establish a transfer efficiency evaluation system,select walking distance,transfer facilities area,train departure interval as input index of transfer efficiency evaluation,select transfer passenger number and transfer time as the output index,and provide the data source of index and method of calibration.Through the comparison and analysis of passenger behavior simulation software,Anylogic is finally chosen as the microscopic pedestrian simulation software for transfer station simulation.In 2017,Chengdu metro line 7 will be opened,together with metro line 1,line 2,line3 and line4,there will be 13 transfer stations in operation.According to the layout of the station,divide these transfer stations into "L" shape transfer station,"T" shape transfer station,"?" shape transfer station and transfer station with double island platform,and build Anylogic simulation models for all the transfer stations.By calculation and evaluation of 13 transfer stations in Chengdu metro networks,the current low efficiency operating stations will be found out.Through analysis and DEA invalid station diagnosis,compared with visualization simulation results,provide an optimization scheme of transfer passenger flow organization in "L" shape transfer station Yipintianxia,and "T" shape transfer station East Chengdu Railway Station whose transfer efficiency is less than 0.8.Simulate with the optimization scheme again to verify feasibility of the optimization scheme.This process provides advice for operation and management of the not yet opened transfer stations,and a reliable way for the optimization of metro passenger flow organization scheme.