Research On Transfer Coordination Optimization Under The Condition Of Urban Rail Transit Network

With the rapid development of urban rail transit,more and more cities have operated multiple rail transit lines.Urban rail transit has gradually transited from single line operation to network coordinated operation stage.The transfer efficiency of transfer station is becoming more and more prominent,which puts forward higher requirements for network transfer coordination.As an important node in urban rail transit network,transfer efficiency will have a direct impact on passengers' travel time and experience.Therefore,it is very important to carry out the research of urban rail transit network.In this paper,urban rail transit network transfer coordination as the research object,the main research contents are as follows:(1)Analysis of transfer forms and influencing factors of urban rail transit.Based on the summary of the type,layout,transfer mode and passenger flow characteristics of interchange station,this paper introduces their characteristics in detail.Based on this,it analyzes the influencing factors of interchange efficiency from three aspects of station equipment and facilities,driving organization mode and transfer time,which provides theoretical basis for establishing the model.(2)Build transfer efficiency optimization model.Based on the above theory,this model in order to establish a target,total waiting time of passengers are minimized,establishes the optimization model of the arrival and departure time of the networked train,designs the genetic algorithm to solve it;at the same time,on the basis of the importance,the transfer week is considered comprehensively based on the importance of transfer nodes,a network transfer coordination optimization model is established.(3)Case analysis.Based on the network operations of Shijiazhuang Metro,a cordding to collecting the passenger's transfer travel time data,using MATLAB fitting solution?Using this model and selects the flat peak for example verification.The results show that the total transfer time of the line network optimized by genetic algorithm is small,but the waiting time of passengers in the transfer relationship with high importance of the line network becomes longer when the transfer importance is low and the transfer relationship is optimal.The transfer coordination algorithm based on the importance of the transfer nodes can effectively avoid this situation,but compared with genetic algorithm,this algorithm can effectively avoid this situation The total waiting time of network transfer will be increased.Through the research,this paper establishes the network transfer coordinationmodel based on genetic algorithm and transfer node importance.According to the comparative analysis of the optimization results,the network transfer coordination optimization model proposed in this paper can effectively shorten the waiting time of passengers.The model is practical and feasible,it is important to promote the network transfer coordination of urban rail transit.