基于最小到达间隔的高铁车站进路分配问题研究

Route Allocation Problem of High-speed Railway Station Based on Minimum Arrival Interval

在给定站型布局、列车停站方案的前提下,考虑列车密集到发时受前后列车停靠股道组合影响的到达追踪间隔,以及咽喉区进路与到发线的整体性,以单方向追踪列车到达间隔时间总和最小为优化目标,构建了高铁车站列车进路分配模型。模型采用Lingo全局求解器求解,通过算例验证了模型的有效性。结果表明:所求进路分配方案中,正线及接近正线的股道占用频次较高,进路冲突得到疏解,能够实现到达间隔总和最小;停站方案对到达间隔具有影响,当列车密集到发,供停站、不停站通过列车占用的股道数目不足3条时,受到发线安全使用间隔约束,列车到达间隔显著增大。

This study proposes a train route allocation model for high-speed railway stations with a given station layout and train stop schedule,considering different arrival intervals caused by different combinations of track utilization and large numbers of arriving and departing trains.In addition,the proposed model considers the total throat routes and arrival–departure tracks,and considers minimization of the sum of one-way arrival intervals as the optimization objective.The model is solved by the Lingo Global Solver,and the validity of the model is the results are verified by two examples.The results show that trains frequently occupy tracks close to the main tracks in the proposed route allocation scheme,and route conflicts are resolved.Furthermore,the sum of arrival intervals can be minimized.In addition,the stop schedule affects the arrival intervals.Owing to safety considerations regarding track utilization,when the number of tracks available for stop and non-stop passing trains is less than three,the arrival interval increases significantly.