cbtc的一些系统配置.doc

A CBTC system shall be capable of supporting a variety of train configurations, including a) Fixed-length unidirectional trains comprised of one or more basic operating units; b) Fixed-length bidirectional trains comprised of one or more basic operating units; c) Variable-length unidirectional trains; d) Variable-length bidirectional trains. A CBTC system shall be capable of supporting a mixed fleet of trains, where specific trains, and/or classes of trains, have different performance characteristics. 一个CBTC系统应能支持多种列车的配置，包括 A）包括基本的操作单元中的一个或多个固定长度的单向列车; 二）由基本的操作单元中的一个或多个固定长度的双向列车; C）可变长度的单向列车; d）变长的双向列车 一个CBTC系统应能够支持混合舰队的火车，在特定的火车，和/或类 火车，有不同的性能特点。 A CBTC system shall include the capability for providing ATP, ATO, and ATS functions. ATP functions shall provide fail-safe protection against collisions, excessive speed, and other hazardous conditions. ATP functions shall have precedence over both the ATO and ATS functions. ATO functions shall control basic operations that would otherwise be performed by a train operator and shall do so within the protection limits imposed by ATP. ATS functions shall provide system status information and the means to monitor and override the automatic control for various functions of the system. A CBTC system shall always provide ATP functions. ATO/ATS functions are optional and shall be provided to the extent specified by the authority having jurisdiction. The CBTC train-to-wayside communications interface shall be sufficient to support all required ATP, ATO and ATS functions. The datalink shall provide continuous geographic coverage within CBTC territory and shall support train operations in tunnels, tubes, and cuts; on elevated structures; and at grade. The datalink shall support bidirectional data transfer and shall exhibit sufficiently low latency to support the defined performance requirements. The datalink shall include a protocol structure to support safe, timely, and secure delivery of train control messages. 一个CBTC系统的能力，包括提供ATP