摘要
上海市轨道交通2号线针对设备老化与客流增长难题,首创CBTC为主用、TBTC为后备的双信号冗余机制,采用兼容性车载系统实现“边运营、边改造”。文章介绍双信号系统的构成与协同控制原理,阐述系统升级历程,对比分析ATO与DTO模式下列车的旅行速度、折返用时、周转时长及上线列车数量等运行参数,验证系统升级成效,并探讨行车间隔优化可行性。结果表明,DTO模式较ATO模式旅行速度提升约2 km/h、折返用时缩短30~75 s,高峰时段上线列车数减少4列仍能保障运能,双信号系统的冗余设计显著提升线路运营可靠性与效率。该方案为既有城市轨道交通线路信号系统升级提供技术参考。
Confronting the challenges of equipment aging and growing passenger flow,Shanghai urban transit line 2 pioneered a dual-signal redundancy mechanism with CBTC as the primary system and TBTC as the backup,and adopted a compatible onboard system to realize“simultaneous operation and renovation”.This article introduces the composition and collaborative control principle of the dual-signal system,expounds the system upgrade process,and compares and analyzes operating parameters such as train travel speed,turnaround time,cycle time and number of in-service trains under ATO and DTO modes to verify the effectiveness of the system upgrade and discuss the feasibility of operation interval optimization.The results show that compared with the ATO mode,the DTO mode increases the travel speed by approximately 2 km/h,shortens the turnaround time by 30-75 s,and reduces the number of in-service trains by 4 during peak hours while still ensuring transport capacity.The redundant design of the dual-signal system significantly improves the operational reliability and efficiency of the line.This scheme provides technical references for the signal system upgrade of existing urban rail transit lines.
作者
孟锦程
袁月
MENG Jincheng;YUAN Yue(Shanghai Lida University,Shanghai 201608,China)
出处
《现代城市轨道交通》
2026年第2期59-65,共7页
Modern Urban Transit
基金
上海立达学院重点课题(AKY-2025-4A01)——复杂优化问题的协同进化自适应分布式差分算法。
关键词
城市轨道交通
信号系统
运行参数
行车间隔
urban rail transit
signal system
operating parameters
operation interval
