列车追踪间隔时间对高速铁路通过能力利用的影响分析
Influence of train tracking headways on carrying capacity utilization of high-speed railway

列车追踪间隔时间影响高速铁路线路的发车频率,从而影响通过能力。统计分析我国高速铁路和日本东海道新干线的现状运行图中列车追踪间隔时间现状,计算各类列车追踪间隔时间的理论值,并基于现行运行图,制定压缩列车追踪间隔的开行方案。以国内某线路为例,通过仿真法铺画运行图并统计运行指标。研究结果表明:现状运行图的列车追踪间隔时间具有压缩的可能,当现状运行图的到达列车追踪间隔时间压缩到5 min和4 min30 s时,全日区间开行列数从113列分别提高到161列和192列,已超过日本东海道新干线的181列;区间小时开行最大列数从10列分别提高到12列和14列,和日本东海道新干线的14列持平。
Train tracking interval times affect departure frequencies and carrying capacity utilization of high-speed railway lines. This paper analyzed current train interval times of high-speed railways in China and Japan by statistical method, and new train planning was designed by compressing train tracking intervals based on current diagrams. A real line in China was taken as an example to study the diagrams of new train planning by simulation. The analysis on train tracking interval times and departure frequencies shows that there''''s still space for compressing train tracking intervals. When they''''re compressed to 5min and 4min30s, the departure frequencies of full-day increase from 113 to 161 and 192 respectively, in which the latter one has surpassed Japan Tokaido Shinkansen(181); and the maximum hourly departure frequencies increase from 10 to 12 and 14 respectively, in which the latter one has cought up with Japan Tokaido Shinkansen(14)