无人自动折返模式下城市轨道交通车站站后折返能力分析  

Analysis of Urban Rail Transit Station Post-station Turn-back Capacity under Unmanned Automatic Turn-back Mode

作　　者：罗诗芸 LUO Shiyun(Xiamen Rail Construction Development Group Co.,Ltd.,361001,Xiamen,China)

机构地区：[1]厦门轨道建设发展集团有限公司,厦门361001

出　　处：《城市轨道交通研究》2023年第10期49-54,60,共7页Urban Mass Transit

摘　　要：目的:为压缩城市轨道交通高峰期行车间隔,提升运输服务水平,需要对ATB(无人自动折返)模式下城市轨道交通车站站后折返能力进行研究。方法:以采用ATB模式折返为切入点,以厦门地铁2号线五缘湾站为例,基于到发列车行车间隔均衡的理想情况,利用时序模型,将折返作业拆分为单项作业,根据作业的前后顺序及限制条件将其绘制在时序图上,计算分析相邻两列车的到达间隔、进出折返线间隔及发车间隔等,对比该折返方式下的最小折返间隔及其折返能力,并结合实际折返作业过程中受到信号系统排列进路时机的影响,分析限制折返能力的因素,得到终到站到达列车间隔对应的车站站后折返方式。结果及结论:在采用站后ATB模式折返时,站后单线折返的最小折返间隔为114 s,站后双线折返的最小折返间隔为112 s;受到信号排列进路时机的影响,到达列车行车间隔为158~213 s时,采用站后单渡线折返;到达列车行车间隔为114~158 s或大于213 s时,可以采用两种折返方式折返。Objective:To compress peak-hour train interval time and enhance transportation service level in urban rail transit,it is essential to study the post-station turn-back capacity of urban rail transit station under ATB(unmanned automatic turn-back)mode.Method:Taking the adoption of ATB mode for turn-back as a starting point in the case of Xiamen Metro Line 2 Wuyuanwan Station,and according to the ideal scenario based on balanced train interval time for arriving and departing trains,a temporal-sequence model is utilized to break down the turn-back process into individual operations,which are then depicted on a timeline diagram based on their sequence and constraints.Calculations are conducted to analyze intervals between adjacent arriving trains,turn-back track entry/exit interval,and departure interval.By comparing the minimum turn-back interval and its turn-back capacity under this mode,and considering the impact of signaling system arrangement entry timing during actual turn-back operation process,factors limiting the turn-back capacity are analyzed and the post-station turn-back mode corresponding to train arrival intervals at the terminal station is identified.Result&Conclusion:When using post-station ATB mode,the minimum post-station turn-back interval time for single-track is 114 s,while for double-track,it is 112 s.Considering the impact of signaling arrangement entry timing,when the train arrival interval is between 158 to 213 seconds,the post-station single-crossover turn-back is recommended.When the train arrival interval is between 114 to 158 seconds or exceeds 213 seconds,either of the two turn-back modes can be adopted for turn-back operations.

关 键 词：城市轨道交通 车站 站后折返能力 无人自动折返模式 

分 类 号：U292.51[交通运输工程—交通运输规划与管理]