基于车车通信列控系统的城市轨道交通列车运行效率分析
邓志翔1王成1徐军2姜西1
Analysis of Train Operation Efficiency of Urban Rail Transit Based on Train-to-train Communication Train Control System
DENG Zhixiang1WANG Cheng1XU Jun2JIANG Xi1
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作者信息:1.中铁第四勘察设计院集团有限公司， 430063， 武汉
2.温州市铁路与轨道交通投资集团有限公司， 325088， 温州
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Affiliation:1.China Railway Siyuan Survey and Design Group Co., Ltd., 430063, Wuhan, China
2.Wenzhou Mass Transit Railway Investment Group Co., Ltd., 325088, Wenzhou, China
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关键词:
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Key words:
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DOI:10.16037/j.1007-869x.2024.03.019
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中图分类号/CLCN:U231.7
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栏目/Col:研究报告
摘要:
［目的］城市轨道交通T2T(车车通信)列控系统是一种新型的信号系统，其通过资源化管理方式对轨旁设备进行管控。为了验证该系统的优越性，需对该系统下的列车运行效率进行分析。［方法］针对T2T列控系统，基于资源管理层面和安全防护原理的特点，在折返工况下，将原本由联锁控制的双动道岔转变为两个单动道岔，并基于列车精确自定位实现ATP(列车自动防护)，提高了岔区线路资源的使用能力；在区间和车站追踪工况下，通过前后车对于车速、加速度、所处线路位置等信息的实时互传，利用相对速度安全防护原理进一步缩小了列车的追踪间隔。通过上述两方面的技术革新，结合城市轨道交通线路的实际数据，对站后交叉渡线折返、站前单渡线折返、区间与车站追踪等运营场景进行了模拟仿真计算，确定了T2T列控系统的折返能力和区间追踪能力。［结果及结论］相较传统的CBTC(基于通信的列车控制系统)，T2T列控系统在折返能力、追踪能力等方面均有着显著提升，更加适应于超大运量的城市轨道交通线路；T2T列控系统架构简单，轨旁设备少，尤其适合城市轨道交通的大修改造项目。
Abstracts:
［Objective］ The T2T (train to train) communication train control system in urban rail transit is a new type of signal system, and it manages and controls trackside equipment through resource management. To verify the superiority of the system, it is necessary to analyze the train operation efficiency under this system. ［Method］ In view of the characteristics of the resource management and safety protection principles for T2T train control system, the originally interlocking controlled double action switch is transformed into two single action switches, and ATP (automatic train protection) is achieved based on train precise self-positioning under reversal working conditions. The utilization capacity of line resources in the turnout area is improved. Under tracking conditions in line sections and stations, the train tracking interval is further reduced by utilizing the principle of relative speed safety protection and by inter-transmitting the real-time information of speed, acceleration, and position between the front and rear trains. Through the technological innovation in the above two aspects and based on the actual data from urban rail transit lines, operation scenarios such as reversal on scissors crossover behind the station, reversal on single crossover in front of the station, tracking in line sections and stations are simulated and calculated. The capacity of the T2T train control system in train reversal and line section tracking is determined. ［Result & Conclusion］ Compared to the traditional CBTC (communication-based train control system), the T2T has significant improvement in reversal and tracking capacity and other aspects, which enables it to be more suitable for urban rail transit lines with super large traffic volume. The T2T train control system is also particularly suitable for urban rail transit renovation projects as it has a simple architecture and requires less trackside equipment.
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