高普平行通道列车开行结构调整优化模型研究

Optimization Model for Adjusting Train Operation Structure in Parallel Corridor of High Speed and Conventional Railway

铁路通道作为连接区域中心和枢纽的重要运输纽带,对旅客出行、货物运输以及区域经济的发展具有重要意义。在高速铁路和普速铁路双网融合的背景下,如何优化高普平行通道内列车开行结构,实现客运提质、货运增能,已成为关键问题之一。针对区域内平行通道列车开行状况,为满足路网能力提升及运行图优化需求,研究基于客货分线和列车运行图优化模型理论,在列车运行图基本约束的基础上综合考虑列车跨天运行以及V形天窗的情况,以高速铁路和普速铁路列车始发终到调整时间最小和高速铁路列车数量增加最多为双目标函数,构建了高普平行通道列车开行结构调整优化模型。通过案例分析验证了模型的有效性,优化了现有列车开行结构,实现了既有运行图新增列车运行线,研究结果为通道内列车开行方案调整提供理论依据。

As an important transportation link connecting regional centers and hubs,railway corridors are of great significance for passenger travel,cargo transportation,and regional economy.In the context of the integration of high speed railway and conventional railway,it has been a crucial problem to optimize the train operation structure in the parallel corridor of high speed and conventional railway,therefore benefiting passenger transport and freight capacity.In response to the train operation status in the regional parallel corridor,to meet the needs of improving railway network capacity and optimizing train working diagrams,this study was based on the theory of passenger and freight separation and optimization models for train working diagrams.Based on the basic constraints of train working diagrams,the study comprehensively considered the day-span operation of trains and V-shaped skylights.A dual objective function was constructed to optimize the train operation structure in the parallel corridor of high speed and conventional railway,with the minimum adjustment for train departure and arrival time on high speed railway and conventional railway and the maximum increase in the number of trains on high speed railway.The effectiveness of the model was verified through case analysis,and the existing train operation structure was optimized.New train operation lines were added to the existing train working diagram.The research results provide a theoretical basis for adjusting the train operation plan in the corridor.