Research On Long-distance Train Planning High-speed Railway

The high-speed railway has the characteristics of long mileage,many lines,high service frequency of stations(lines),large passenger demand and high reliability in China.Its development will bring more frequent exchanges to the economy,culture and life of the cities along the route,and the demand for long-distance travel will also increase.With the continuous improvement of road network structure,the upgrading of infrastructure and operation conditions of high-speed railway can meet the different needs of more passengers and shorten travel time to the maximum extent.This makes the operation of long-distance high-speed railway train have certain passenger demand.This paper will study the train operation scheme of Beijing-Shanghai high-speed railway.Firstly,based on the passenger flow of high-speed railway network,this paper analyses and studies the passenger flow characteristics of high-speed railway from the aspects of passenger flow composition,travel characteristics and transfer intention,and obtains the passenger flow rules of high-speed railway network and the main reasons affecting passenger travel behavior choice.Secondly,it summarizes the operation status of Beijing-Shanghai high-speed railway from three aspects: line connection,railway operation and train operation quantity design.Based on the analysis of passenger flow demand above,the factors and principles affecting passenger train operation planning are obtained.In compiling the train operation plan,the first step is to determine the train route and forecast passenger flow.In this paper,unconstrained gravity model is used to predict passenger flow of Beijing-Shanghai high-speed railway in 2022.From the viewpoint of passenger travel demand and operation benefit of railway department,the train operation plan is formulated.The objective function is to minimize passenger travel time consumption,maximize direct passenger traffic and minimize train waste.A multi-objective programming model with passenger flow delivery and arrival constraints,train stop constraints,section capacity constraints,train seat utilization constraints and non-negative integer variables as constraints is proposed.Finally,genetic algorithm is used to solve the model.In order to facilitate calculation,the model is simplified to a single-objective model.The pairs of trains of Beijing-Shanghai high-speed railway is obtained by programming with MATLAB R2015 b software.The pairs of trains of Beijing-Shanghai high-speed railway is obtained by combining with the cross-line passenger flow.Finally,the running plan of Beijing-Shanghai high-speed railway in 2022 is obtained.