高速铁路可变编组列车开行计划优化

目前,我国高速铁路列车一般采用固定编组形式,动车组运用效率较低,而未来可变编组列车投入使用后,运营组织方式将发生很大变化,需要优化列车开行计划以充分发挥可变编组列车的优势。研究可变编组列车在各技术区段的编组内容和组合拆解计划,以动车组开行成本最小和组合拆解作业时间最短为优化目标,构建可变编组列车开行计划优化模型,设计分支定界算法求解。以京沪高速铁路进行案例分析,结果表明:相比同等条件下固定编组模式,优化的可变编组列车开行计划可以提高列车客座利用率。

Operation Plan Optimization of High Speed Variable Configuration Train

At present,China high speed train usually adopts fixed configuration with low utilization efficiency of EMU.Great changes will take place in the operation organization mode after the variable configuration trains are put into use.It is necessary to optimize the train operation plan to give full play to the advantages of variable configuration trains.The marshalling content and the assembling and disassembling operation plan at each technical section were studied.Aiming at minimizing the operation cost of EMU and time of assembling and disassembling operation,the train operation optimization model of variable configuration train was constructed and the branch and bound algorithm was designed to solve the problem.Taking Beijing-Shanghai high speed railway as an example,the research results show that the optimized train operation plan of variable configuration trains could elevate the passenger load factor compared with the fixed configuration trains under the same condition.