Abstract: From the perspective of signaling system, this paper analyzes the influencing factors of turn-back interval of turn-back stations, studies the optimization scheme of improving turn-back capacity of turn-back stations, and puts forward specific measures such as optimizing the running time of train entering the station and entering & leaving the turning track, shortening turn-back end-changing time, and improving the operation proficiency of operators. Through practical engineering application and field test, the optimization scheme is verified, and the target of 2 minutes minimum operation interval and 10% margin for signaling system under typical station is realized.

Key words: signaling system, turn-back capacity, optimization scheme

摘要： 从信号系统角度出发，分析折返站折返间隔的影响因素，研究提升折返站折返能力的优化方案，并提出优化列车进站及出入折返轨运行时间、缩短折返换端时间、提升运营人员操作熟练度等具体措施。通过实际工程应用及现场测试，对优化方案进行验证，实现典型站场下信号系统能达到2 min最小运营间隔并预留10%余量的目标。

关键词: 信号系统, 折返能力, 优化方案