Research On Optimization Of Rolling Stock For Urban Rail Transit Under Network Operation

In China,urban rail transit is becoming the most commonly used way of public transportation,in the face of increasing traffic,operating department needs to continuously improve the quality of service,and on this basis to control operating costs,access to maximum operational efficiency.The preparation of a good vehicle utilization plan is a key link to improve operational efficiency.At the same time,the urban rail transit line is gradually networked.In order to improve the utilization rate of the vehicle resources,the network preparation requirements of the vehicle utilization plan are also generated.Based on the comprehensive grasp of the optimization of the meaning of the use of urban rail transit,this paper analyzes the advantages and disadvantages of the use of single-line and the use of the network at the end of the network,and expounds the network utilization of the vehicle.A brief description of the city rail car repair process,emphasizing the maintenance conditions to the use of the impact of the number of vehicles.The use of the plan to prepare the good or not the standard is the rational allocation of the train transport mission,and ultimately embodies the efficiency of the use of urban rail car,the article from the train road planning,the use of the vehicle model,train operation map,train reentry way,The layout of the depot and the maintenance of the vehicle and the planning method of the bottom of the vehicle.In the process of establishing the model,the problem of the use of the vehicle is analyzed,and the multi-traveling salesman problem model is applied to the problem of networked vehicle utilization,and the nodes in the network node map are defined.In the meaning.The goal of improving the utilization efficiency of the vehicle is transformed into the shortest time and the waiting time of the train is the shortest,and the multi-objective function is constructed.Under the constraint condition,the condition of the bottom of the vehicle and the maintenance of the vehicle Optimization Model of Vehicle Subway Operation.According to the basic model of multi-traveling salesman problem,the advantages and disadvantages of the corresponding algorithm are analyzed and compared.The ant colony algorithm is used to solve the model,and the corresponding algorithm flow is designed for the model.In the process of obtaining the initial solution,by judging whether the car in advance to meet the conditions of the car to achieve the continuation.In the example,a vehicle utilization plan is prepared according to a simple network,compared to the independent use of the vehicle,network operation is proved to be beneficial to improve the efficiency of the use of car.