Study On Optimization Of Operation Scheme Of Cross-line Train For High-Speed Railway

In recent years,with the construction and development of high-speed railway in China,high-speed railway has gradually been becoming the network operation,and its network structure is increasingly complex.Because of our country has a large population and a vast territory,along with the long distance of passenger travel,passengers often have to go through cross-line transportation,resulting in a large number of the cross-line passenger flow.more and more high proportion of the cross-line train will become a obvious development trend of high-speed railway in China.The train operation scheme as an important basis for making train diagram,especially the operation scheme of the cross-line train provides a reasonable layout for train diagram.In order to solve the operation problem of the cross-line,it is necessary to carry out a deep research on the operation scheme of the cross-line train for high-speed railway.Based on the basis of summarizing the existing research results,this paper studies the optimization theory and method of the operation scheme of the cross-line train for high-speed railway.Firstly,this paper analyzes the theory of the operation scheme of the cross-line train for high-speed railway,and studies the key problems of the operation scheme of the cross-line train for high-speed railway.Secondly,the paper constructs the optimization model of the operation scheme of the cross-line train for high-speed railway,and designs the corresponding algorithm to solve the model according to the characteristics of the model.Finally,based on the operation scheme of the cross-line train for high-speed railway which has been established before,the paper studies the adjustment method of the running lines between the cross-line train and the same-line train.The main research work of this paper is as follows:(1)The paper analyzes the constituent and characteristics of the passenger flow of high-speed railway,and points out the reasonable transportation way of the cross-line passenger flow for high-speed railway in China.The definition of the operation scheme of the cross-line train for high-speed railway is described,then the paper analyzes the characteristics and principles and procedure of making the operation scheme.(2)The paper analyzes the influence factors of the operation scheme of the cross-line train for high-speed railway,including the travel rule of the cross-line passenger flow and passenger satisfaction,number of EMU,the reasonable arrival and departure time of cross-line train at the cohesion station,the capacity of station and line,the comprehensive maintenance window and train safety requirement.While the paper summarizes the coordination relationship between the setting form of the comprehensive maintenance window and the cross-line train of high-speed railway.And based on the principle of convenience of passenger travel,taking fully into account the influence of the comprehensive maintenance window time for the driving time of the cross-time train,this paper puts forward the calculation method of the reasonable domain of the originating time and the final arrival time and the up-down line time at the cohesion station for the cross-line train.(3)The paper sets up the optimization model of the operation scheme of the cross-line train for high-speed railway,that taking the minimum number of EMU and the maximum satisfaction of passenger travel time as the goals,and taking the reasonable domain of the arrival and departure time,the station safe interval time,the comprehensive maintenance window time,the capacity of arrival and departure tracks,EMU operation as the constraints.At the same time,the paper designs the improved simulated annealing algorithm to solve the model according to the characteristics of the model,at last,it takes the Beijing-Shanghai high-speed railway as the example to prove the rationality of the model.(4)Based on the operation scheme of the cross-line train for high-speed railway which has been established,the paper analyzes the coordination between the running line of the cross-line train and the same-line train,and elaborates their conflict forms,and puts forward the adjustment method to ease the conflict of the running line of the cross-line train and same-line train.