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移动闭塞信号设备相对于逻辑闭塞(虚拟闭塞或假移动闭塞)信号设备;集成设计相对于单独联锁控制——就是哪个更符合用户的操作原则和性能要求的问题。当前在全球范围内正在执行两种不同类型的基于通信的列车控制(CBTC)方案:SelTrac S40是把移动授权和联锁功能完全集成在一起,还有些系统如SelTrac S30或西门子的Trainguard系统,是通过采用CBTC完成移动授权,但联锁功能采用的是传统的闭塞设计。
Moving the occlusion signal device relative to the logic occlusion (virtual occlusion or false occlusion) signaling device; the integrated design versus individual interlock control - is one which is more in keeping with the user’s operating principles and performance requirements. There are currently two different types of CBTC programs currently being implemented worldwide: the SelTrac S40 is fully integrated with mobile authorization and interlocking functions, and some systems such as the SelTrac S30 or Siemens Trainguard system are Through the use of CBTC to complete the mobile authorization, but the interlock function uses a traditional occlusion design.