北京地铁5号线折返追踪间隔分析

Analysis of Headway in Turn-back Area for Beijing Subway Line 5

在城市轨道交通运行系统中,列车在折返区域的追踪间隔是单条线路提升运力的瓶颈。分析北京地铁5号线折返追踪间隔,以实现"列车2 min运行间隔"的目标。首先根据现场实测数据分析5号线列车在折返区域中的进站追踪能力、折返追踪能力和出站追踪能力,进而计算列车在折返区域的最小运行间隔;其次,基于列车运行图编制理论提出通过缩短列车站停时分、出入库时分、转台时分来减小列车折返追踪间隔的方法;最后,结合北京地铁实际的运营管理经验,从系统设计角度提出缩短城市轨道交通列车折返追踪间隔的技术手段和措施。

In urban rail transit systems, train headway in the turn-back area is the bottleneck of the line capacity. To achieve the headway of 2 minutes for Beijing Subway Line 5, this paper analyzes the train headway of the turn-back area. Based on the operational data, the headways of arriving at the terminal station, turn-back tracking, and leaving the terminal station are calculated, and the minimum headway for the turn-back area is obtained. Then, on the basis of the timetable theory, the methods of reducing the dwell time, the running time in the turn-back area and the exchange time of the operation direction are proposed to reduce the headway.Finally, some other countermeasures from the aspect of system design are suggested to cut down the headway of urban rail transit systems in view of the operation experience.