Research On Coordinated Control Of Urban Rail Transit Passenger Flow Considering The Balanced Distribution Of Passengers At Stations

China's urban rail transit industry has experienced rapid development in recent years,and its operational technology is becoming more mature,gradually accelerating the trend of networked operations.Under the networked operating conditions,the accessibility of the network is gradually enhanced,the time and space distribution characteristics of passengers are increasingly complex,and the coupling relationship between passenger flow demand and network transportation capacity is gradually becoming tight and complicated.However,crowding of passengers is also becoming more and more serious.Once congestion is out of control,it will increase operational safety hazards.In order to ensure passengers' travel safety and improve service level,this paper mainly studies the use of scientific and effective methods to establish a multi-line passenger flow collaborative control model under networked operating conditions,providing valuable reference for operational safety.The main research work includes:This paper first expounds the concept of networked operation of urban rail transit,and describes the spatial and temporal distribution of passenger flow and the imbalance of distribution from the station,line and network layers.Secondly,it relates to the related factors affecting passenger demand and service capacity.Finally,the data of the inbound and outbound passenger flow of each station during the morning peak period are analyzed and processed.Based on the population weight opportunity model,the OPS model is obtained by mathematical interpretation,and the program realization of the OPS model is completed by python programming,get the amount of OD of each station at different times.This paper analyzes the related factors affecting passenger flow distribution under networked operation conditions,and analyzes and analyzes the three passenger flow distribution models frequently used in urban rail transit passenger flow distribution.The Logit passenger flow distribution model based on network passenger flow characteristics is established,combined with actual cases.The network passenger flow is distributed;the accuracy of the model is verified by the data obtained from the network questionnaire;the passenger flow excess is obtained by the passenger flow distribution,and the traffic passing rate of the station passenger flow in the local network is calculated to determine the passenger flow.Control the unknown parameters of the model.Finally,considering the passenger flow demand relationship constraint,the interval transportation capacity constraint and the station carrying capacity constraint conditions,the optimal stop quantity of each station in the time-sharing period is taken as the decision variable,and the total delay time of the multi-line passengers is the smallest and the flow control rate of each station is the minimum.The function establishes a coordinated control model for multi-line passenger flow in urban rail transit;a case study is carried out on a multi-line network consisting of Beijing Metro Line 2,Line 6 and Line 8,and the station flow control model is used to calculate the different stations.The optimal inbound passenger flow during the period,and compared with the actual inbound passenger flow,determine the final control station,control flow period and the intensity of the control flow,which provides a quantifiable reference for the development of scientific passenger flow control measures in accordance with.