Study On Optimization And Evaluation Of High-Speed Railway Trains Stop Schedule Plan Considering The Matching Degree Of Station Service Frequency

In recent years,the construction and development of high speed railway in our country has entered a rapid stage.The passenger flow has steadily increased year by year,which greatly alleviate the pressure on passenger carrying capacity in the transport channels.But at the same time,there is also an unbalanced relationship between the station service frequency and the passenger travel demand.The stop schedule plan of high speed railway is the key part of the opration plan.Under the condition of the train operation interval and the logarithm,how to set up the train stop plan scientifically and rationally,so that the station service frequency and the passenger travel demand tend to be balanced,related to the service level of the passenger transport and the economic benefits of the railway transportation department.Therefore,based on the above background,this paper makes an in-depth study on the stop schedule plan of China's high speed railway.The main research contents and achievements are as follows:(1)On the theoretical level,the related problems of high-speed railway train stop plan are systematically analyzed.It includes the advantages and disadvantages of the stop modes and its combination mode as well as its adaptive conditions of high speed railway train stopping pattern;By analyzing the influencing factors of the stop schedule plan of high speed railway,the principle and process of the stop plan for high-speed railway are put forward.(2)On the practical level,the current situation of train stop schedule plan of China's high-speed railway is analyzed,and takes the Shanghai-Nanjing railway and Beijing-Shanghai railway in China for case studing.The corresponding relationship between the station service frequency and the passenger flow node grade is proposed.In view of the problem that the station service frequency is not well matched between station service frequency and station passenger flow,the concept of station service frequency matching degree is put forward.(3)The optimization model of the high-speed railway train stop plan is constructed.Specifically,it includes:based on node traffic volume,proposes a method based on system clustering method to classify the passenger flow nodes;establishes a minimum passenger loss time,minimizes the station service frequency deviation from the target service frequency,minimizes the total number of stops,and the distance from the train The shortest optimization plan for the highest practical goal,which is based on the practice of operation is the node service frequency,OD service frequency,the number of stops in a single train restrictions.For multi-objective planning,pareto multi-objective genetic algorithm based on NSGA-II is designed to solve the problem.The corresponding conclusions were reached.(4)After solid theoretical foundations were laid,the indicators for evaluating the level of high-speed railway train stop programs were designed for the ultimate goal and impact factors of the high-speed railway train stop plan,and the evaluation index system was constructed mainly from three aspects:economy,technology,and service.(5)In order to verify the effectiveness of the optimization model of high-speed railway stop scheme plan,an example application analysis is carried out using Beijing-Shanghai high-speed railway.The results show that the optimized train stop scheme plan is obviously better than the original train stop scheme plan,which proves the effectiveness and practical significance of the optimization method proposed in this paper.