基于均衡性和能力利用的高速铁路标杆车运行图编制方法研究OA北大核心CSTPCDEI

The service quality of high-speed railway benchmark trains is of great significance for improving the competitiveness of railway passenger transport products.In the process of compiling the train working diagram on-site,high-speed railway benchmark trains must be laid first.Therefore,the result of compiling the working diagram of the benchmark trains determines the framework of the whole train working diagram.In order to improve the service quality of high-speed railway benchmark trains,based on the running characteristics of benchmarking trains,considering the basic constraints of train working diagram such as running time constraint and routing connection time constraint,and combining with the special constraints such as departure time constraint and group tracking operation constraint of benchmark trains,an integer linear programming model aiming at OD service equilibrium and capacity utilization was constructed.The iterative algorithm framework was designed,and commercial solvers were nested for solving.In the first stage,the grouping problem of benchmark trains without considering the safety interval constraint was solved with the goal of OD service balance.In the second stage,the group of benchmark trains obtained from the solution was taken as the input,the constraint of safety interval was added,and the solution was carried out with the goal of capacity utilization.Finally,the Beijing-Guangzhou high-speed railway was taken as an example,the actual parameters and the optimization solver ILOG CPLEX were used to solve the problem,and the effectiveness and feasibility of the model were verified.The experimental results show that the optimization model can be solved in a short time.The upstream and downstream OD service balance is improved by 38.2%and 51.7%,respectively,and capacity loss is reduced by 50%.Through the experiments of multiple examples,the optimal solution can be obtained within 200 seconds.In addition,it can limit the connection time of benchmark trains in Beijing West Station to less than 45 minutes,which can not only have little impact on OD service balance and capacity utilization but also relieve the pressure on the station stock track.The optimization results can provide a reference for the compilation of high-speed railway benchmark trains working diagram.