地铁列车站前折返效率影响因素分析

Analysis of Factors Influencing the Front Turnback Efficiency of Metro Train

分析了基于通信的列车自动控制(CBTC)模式下影响地铁列车折返效率的各种因素。折返效率受限于折返站站型、土建和轨道的限速、车辆特性,以及列车的控制方式。要提高列车站前折返效率,需综合考虑土建、信号、车辆、道岔、经济等因素,如折返区域采用大号岔道,选择合适的制动曲线,在考虑经济的情况下尽量使保护区段的长度不影响列车停站时间等。

Various kinds of factors that influence the turnback efficiency of metro train based on CBTC are analyzed. The turnback efficiency is constrained by the type of turnback sta- tion, the limitation of civil work and rail speed, the characters and control mode of train, etc. So, it is necessary to consider all the factors mentioned above for the improvement of turn- back efficiency, such as adopting large-scale crossings in turn- back area, selecting proper braking curve, and in precondition of construction cost controlling the length of protection area to avoid its influence over train stop time.