摘要
[目的]相较于CBTC(基于通信的列车控制)系统,TACS(列车自动控制系统)在运行效率上有着显著提升,这种提升主要源于其系统架构的优化以及对轨旁资源管理方式的改变。通过对比分析两套信号系统的道岔资源管理方式,进一步研究TACS系统运行效率提升的机理。[方法]介绍了CBTC和TACS系统道岔资源征用概念,对比分析了两套信号系统道岔锁闭和解锁方式的差异;基于大交路站后双折返线线型仿真分析了CBTC和TACS系统下的列车折返效率。介绍了道岔可动区域和侧冲区域的概念,并分析了在两套信号系统中的应用方式。[结果及结论]TACS系统道岔资源管理方式的效率较高。根据大交路站后双折返线线型列车折返过程仿真结果,CBTC系统下的列车折返时间为116.3 s,TACS系统下的列车折返时间为86.0 s,TACS系统下的列车折返效率提升明显。TACS系统实现了道岔与列车之间的实时信息交互,优化了道岔控制逻辑,实现了道岔与列车的协同调度,因此实现了较高的道岔资源管理效率,这是TACS系统运行效率提升的内在机理。
[Objective]Compared to CBTC(communication-based train control)system,TACS(train automatic control system)significantly enhances operational efficiency,primarily due to optimized system architecture and changes in trackside resource management methods.By comparatively analyzing the turnout resource management methods of these two signaling systems,the mechanism of TACS system operational efficiency improvement is further studied.[Method]The concepts of turnout resource allocation in CBTC and TACS systems are introduced,and the differences in turnout locking and unlocking methods between the two signaling systems are compared and analyzed.Based on the simulation analysis of double-turnback line layout behind major routing station,the efficiency of train turnback under both CBTC and TACS systems is evaluated.The concepts of movable area and lateral shift area of turnout are discussed,and their application methods in the two signaling systems are analyzed.[Result&Conclusion]The turnout resource management method of the TACS system demonstrates higher efficiency.According to the simulation results of train turnback process of the double-turnback line layout behind major routing station,the train turnback time under CBTC system is 116.3 s,while it is 86.0 s under TACS system,indicating that there is a significant improvement in train turnback efficiency under TACS system.The TACS system achieves real-time information interaction between turnouts and trains,optimizes turnout control logic,and enables coordinated scheduling between turnouts and trains.Consequently,higher efficiency in turnout resource management is achieved,which constitutes the intrinsic mechanism behind the efficiency enhancement of TACS system.
作者
陈佳
CHEN Jia(Shanghai Metro Maintenance Support Co.,Ltd.,200235,Shanghai,China)
出处
《城市轨道交通研究》
北大核心
2024年第S01期129-132,共4页
Urban Mass Transit
关键词
城市轨道交通
信号系统
道岔资源管理
urban rail transit
signaling system
turnout resource management
作者简介
陈佳,高级工程师,122210125@qq.com。
