Optimization Of Train Routing Scheme For Urban Rail Transit Considering Passenger Route Choice

With the rapid development of economy,the increasing travel demand of urban residents leads urban rail transit into a period of rapid development.Compared with other public transport,Urban Rail Transit has significant advantages,mainly reflected in timeliness,safety and punctuality.Although the use of a single long-distance road can meet the travel needs of residents,but also cause a large number of waste of train resources.In order to explore the influence of passenger route choice on different routing schemes,this paper explores different routing combination schemes,because the formation of new routing will increase the number of passenger route and make passenger flow realize route diversion,based on the characteristics of passenger flow,this paper considers the behavior of passenger flow path selection,and optimizes the operation scheme of single-track and cross-track trains in urban rail transit on the basis of the technical capacity of Urban Rail Transit,so as to improve the passenger travel quality,a transportation plan for a more civil economy.Based on the basic theory of train operation plan,this paper analyzes the optimization design elements of the train operation plan of Urban Rail Transit from three aspects: Train Formation Plan,intersection plan and stop plan.Then,considering the influence factors of train operation plan,the paper analyzes the space-time characteristics of passenger flow based on passenger flow data,uses k-means clustering algorithm to cluster passenger flow in space-time,and establishes a passenger flow path selection and allocation model based on passenger flow characteristics,the optimization models of single-track and cross-track train operation plans are established respectively with the objective of minimizing the enterprise cost and passenger travel cost,and solved by genetic algorithm.Finally,an example is given to verify the validity of the model.The results show that the output of the train routing scheme is optimized compared with the original scheme,compared with the original scheme,the single-lane scheme based on passenger route choice can effectively reduce the passenger travel cost and enterprise operation cost,and the total cost can be reduced by 139730 yuan compared with the single long-distance route,the cross-line train routing optimization scheme based on the passenger route choice is also better than the single-line train routing scheme,and the total cost reduction is 47,469 yuan.The train routing scheme is optimized and the feasibility of the model is verified.