城市轨道交通信号系统目标-距离型后备模式的设计原理比较分析

目标-距离型后备模式为目前城市轨道交通CBTC(基于通信的列车控制)系统降级情况下的主流模式。介绍了目前城市轨道交通项目应用的3种不同目标-距离后备模式(标准后备模式、设置防丢属性信标的后备模式、增强型后备模式),比较了不同后备模式信息流特点,对不同后备模式的优缺点进行了分析,指出需从实用性、经济性上综合考虑,并结合项目实际情况选择适合的后备模式。

Design Principle and Application of the Distance-to-Go Block Mode

In case of degradation of CBTC system,the distance-to-go block mode is the mainstream pattern at present.From the perspective of design and application,three kinds of different distance-to-go block mode are introduced,the information flow characteristics of different block modes are compared and analyzed,their advantages and disadvantages are pointed out.On this basis,advices for rational selection of different types of block mode system are proposed,which emphasize the practicality and economy of the distance-to-go block mode.