Research On Optimization Of The Allocation Of Double-check System For Urban Rail Transit

With more and more passengers choose rail transit to travel,in order to ensure the safety of the station and passengers,the rail transit station introduced the security check system.As the adjacent and continuous two queuing facilities,the security check machine and the check-in gate have become the main bottleneck of the metro station,which seriously restricts the efficient operation of the rail transit system.Therefore,this paper takes this as the starting point,focuses on the analysis of the optimal configuration method of the security check machine and the check-in gate,in order to improve the quality of service for passengers.Firstly,this paper introduces the security check and check-in gate system,and puts forward the concept of double-check system by considering the two systems together,and considers that there is a correlation effect between the security check and check-in gate system.Then it analyzes the distribution characteristics of the inbound passenger flow in detail,and describes the spatial-temporal pattern of passenger flow through the changes of passenger composition and dynamic passenger flow.The arrival of passenger flow is dynamic,and the peak passenger flow of some stations has great volatility.In this paper,the peak period passenger flow is divided into several time periods with different arrival rate,and then the model of//1 is established,which can more objectively reflect the operation state of double-check system.By combining the security check and check-in gate system as a whole,this paper establishes the queuing network model of double-check system,and takes the equipment cost,the equipment utilization balance,the passenger consumption time,and the passenger per capita area as the objectives,and establishes the optimization model of the number of facilities in double-check system.Finally,considering the bearing capacity of the station platform,the inbound passenger flow is limited,and based on this,the configuration quantity of double-check system is modified.