Research On Stopping Plan And Optimization Method Of Operation Organization Of Express-local Train On City Lines

The length of the city line is long and the travel distance of passengers is long.The traditional stop plan of the station cannot effectively meet the needs of passenger flow.Therefore,the scientific and reasonable train stop plan can effectively shorten the travel time of long-distance commuting passengers,improve the stop plan with the degree of matching with passenger travel needs,improve the operating efficiency of the line.But the express-local train operation plan affects the line passing capacity.When the train is delayed,the train adjustment is more difficult.Therefore,the problem of dynamic adjustment of the express-local train stop program under delay conditions must be considered.In view of this,this paper conducts an in-depth study on the optimization of the stopping plan of express-local train and the dynamic adjustment of the stopping plan of express-local train under delay conditions.The main research work and results are as follows:(1)Analyze the mode of express-local train,summarize the operating characteristics and influencing factors of express-local train,and finally analyze the cases of express-local train on Guangzhou Metro Line 14 and New York Metro.(2)Establish an optimized model for the stopping plan of express-local train under dynamic passenger flow.Firstly,the plan for the stop of express-local train and its influencing factors are sorted out.The impact on the stop plan of express-local train is analyzed from the aspects of station and passenger flow.The goal is to minimize the overall cost of passenger travel and business operations.Under the constraints of 0-1 constraints,number of stops for express trains,restrictions on train tracking interval,and restrictions on overtaking of slow trains,to establish an optimization model of the plan for stopping trains of express-local train under dynamic passenger flow,and the genetic algorithm is used to solve the problem based on the characteristics of the model.(3)Establish a model for adjusting the stopping plan of express-local train under delay conditions.First,the city line delays are divided into two types: self-delays and after-effects delays.Based on the train punctuality rate and the operation map cashing rate,the adjustment target of the express-local train stop program is analyzed.The total delay time and the minimum delay recovery time are the objective functions,which mainly consider the constraints of the stop time limit,interval running time limit,train tracking interval limit and other conditions,and establish a dynamic adjustment model for the stop plan of the express-local train under the delay condition,and improved particle swarm algorithm to solve it.(4)Taking Shenzhen Rail Transit Line 14 as the research object,under the background of the case,the feasibility verification and solution of the models and algorithms described in Chapters 3 and 4 are carried out.By solving the model of the express-local train stopping plan,and comparing with the traditional stop plan,it reflects the advantages of the express-local train stopping plan,verifies the reduction of passenger travel costs and the reduction of corporate operating costs,and validates the model and algorithm.Based on this,the dynamic adjustment model of the stopping plan of the express-local train under the condition of delay is simulated,and the total delay time and delay recovery time of the train are analyzed.