Research On Integration Of Train Opreation Scheme Based On Passenger Flow Matching And Train Diagram Of Urban Rail Transit

With the improvement of urban rail transit network and the increase of network transfer passenger flow,the train operation plan based on one-way static distribution mode,since lack of feedback mechanism for passenger flow fluctuations in time and space,could easily lead to poor train operation without in-time adjustment,resulting in tension or waste of capacity.Research on train operation scheme of urban rail transit under passenger flow fluctuation of time and space,as well as integrated compilation of train operation scheme and train operation diagram can give full play to the capacity of equipment along lines and stations,give rational distribution of transportation resources and effevtively meet the needs of passengers,so that urban rail transit could improve its attraction and competitiveness in transport market.The essence of the research on the integration of train operation scheme based on passenger flow matching and train diagram of urban rail transit,is to explore the urban rail transit operation organization and decision-making theoretical issues.This paper analyses the feedback mechanism and matching relationship between spatio-temporal fluctuation of passenger flow and train operation scheme in urban rail transit,discusses the optimization strategies of stopping,marshalling and routing schemes with spatio-temporal fluctuation of passenger flow,and constructs the optimization model of urban rail transit train routing scheme based on passenger flow matching.It analyses and compares the differences and princlples of train operation scheme and diagram drawing process of urban rail transit,constructs the optimization model of train connection at transfer stations,which is the key of train operation scheme and diagram integration compilation,and constructs the framework of integrated system of train operation scheme and train diagram for urban rail transit.The main work and achievements of this paper are as follows.1.Introduces the core content of train operation plan for urban rail transit,and points out that the compilation of train operation scheme and diagram are the key links in train operation plan of urban rail transit.Systematically expounds the concepts and main elements of train operation scheme and diagram,and introduces the compilation principles and processes of the two.2.Analyses the relationship between passenger flow and train operation scheme from two aspects-guidance from passenger flow to train operation scheme,and attraction from train operation scheme to passenger flow.Studies on the feedback and matching mechanism of train operation scheme and passenger flow spatio-temporal fluctuations in urban rail transit,comes up with matching relationship evaluation method and process of passenger flow and train operation scheme based on the calculation of passenger flow fluctuation deviation between loading capacity of operation scheme and actual one.3.Analyses three optimization strategies of urban rail transit train operation scheme under passenger flow spatio-temporal fluctuations,including stopping,marshalling and routing optimization,and points out that optimizing train routing is the most effective way to improve the organizational efficiency of urban rail transit at present.With description and construction of urban rail transit transfer network,based on the spatio-temporal change of passenger flow demand,and considered comprehensively with the influencing factors of train routing planning including enterprise operation cost,passenger travel cost and line transport efficiency,it establishes a train routing scheme optimization model for urban rail transit based on passenger flow matching to formulate the routing patterns and operating frequencies in different periods of the day.It uses an improved immune clone algorithm to solve the problem,and takes Hangzhou Rail Transit Line 1 as an example to finish the validation of model and algorithm.4.Analyses the distribution and differences of optimizing objectives and constraints for urban rail transit train operation scheme and diagram,and considers the integration of operation plan and diagram from the perspective of train coordination among lines at the road network level.Studies on cooperative continuation optimization of trains at transfer stations,and establishes the optimal model of train continuation at transfer station with the objective function of minimizing the total waiting time for all passengers in the urban rail transit network,using the average waiting time of all passengers to replace the single passenger waiting time to reduce the variable scale,and takes Hangzhou rail transit network as an example to verify the validity of model.5.Analyses the implication and impact of integrated system of train operation scheme and diagram for urban rail transit,proposes the design principle and overall design logic of the system,completes the framework construction of the integrated system of train operation scheme and train diagram for urban rail transit,and analyses the four key functional modules of the system,including basic data management module,passenger flow analasis module,train operation scheme design and adjustment module and diagram compilation and optimizing adjustment module.