摘要
韧性是运行图编制的最高级目标,运行图的韧性代表了通过使用调度策略(变更列车到/发时刻、变更列车顺序、变更列车进路)防止或缩减初始延误与连带延误的可能性。繁忙高速铁路能力利用接近饱和,列车运行的稳定性、准时性等极易受到干扰的影响,运行图的韧性遭到了极大挑战。加权平均距离可计算列车运行冗余时间相对于列车运行起点的相对距离,进而捕捉冗余时间在整个列车运行线上的分布。利用列车运行线的三类冗余时间(站间区间运行时间冗余时间、车站停留时间冗余时间、综合冗余时间)的加权平均距离,统计分析京沪高铁运行图的韧性。结果表明,京沪高铁下行方向运行图的冗余时间偏向分布于列车运行的后半程,运行图韧性有待进一步提升优化;上行方向运行图的冗余时间偏向分布于列车运行的前半程,运行图韧性较高。研究结果可以发掘并指导繁忙高铁线路运行图冗余时间分布的合理性,有利于运行图韧性的评估与加强。
Resilience is the highest objective of timetabling,which represents the possibility of prevention and reduction of initial delay and secondary delay by using dispatching policies(retiming,reordering,and rerouting).On heavily utilized high-speed lines like the Beijing–Shanghai corridor,capacity saturation renders train operations highly vulnerable to disruptions,posing significant challenges to timetable resilience.Weighted average distance can calculate the relative distance of the train's redundancy time to the initial point of the train operation,so as to catch the distribution of the redundancy time on the entire train operation line.By using the weighted average distance of three kinds of redundancy time of the train operation line(redundancy time of the train running time between the stations,redundancy time of the dwell time within the stops,comprehensive redundancy time),this study analyzed statistically the timetable resilience of the Jing-Hu high-speed railway.The statistical results report that the redundancy time of the downstream of Jing-Hu high-speed railway timetable mainly distribute on the second half of the train operation line,which indicate the necessity of optimization and improvement of the timetable.And the redundancy time of the upstream of Jing-Hu high-speed railway timetable mainly distribute on the first half of the train operation line,which indicate the high resilience of the timetable.These findings provide a quantitative basis for evaluating and optimizing the spatial distribution of redundancy time in timetables on congested high-speed lines,ultimately enhancing overall timetable robustness and recovery capability.
作者
张嘉敏
张嘉锐
ZHANG Jiamin;ZHANG Jiarui(College of Transportation,Shandong University of Science and Technology,Qingdao 266590,China;Qingdao locomotive depot,Jinan railway bureau,Qingdao 266041,China)
出处
《综合运输》
2026年第3期28-34,共7页
China Transportation Review
关键词
繁忙高铁线路
运行图
韧性
加权平均距离
站间区间运行时间冗余时间
车站停留时间冗余时间
综合冗余时间
Busy high-speed railway
Timetable
resilience
Weighted average distance
Redundancy time of the train running time between stations
Redundancy time of dwell time within the stops
Comprehensive redundancy time
