摘要：本标准建立了基于通信的列车控制系统（CBTC）的性能和功能需求。CBTC是一个连续的自动列车控制系统采用高精度列车定位，和轨道线路无关；可连续高效的进行双向轨旁数据通信；包括用车载和轨旁处理器实现的列车自动保护（ATP）功能；以及列车自动运营（ATO）和列车自动监控（ATS）功能。除了CBTC功能方面的需求，本标准还定义了CBTC的行驶的标准，系统安全标准，系统可用标准。本标准可用于所有的运输业包括导向传输模式。
关键字：自动化 通信 信号 列车控制
4. General requirements
通用需求
4.1 Characteristics of CBTC systems
CBTC系统的特征
The primary characteristics of a CBTC system include the following:
一个CBTC系统的主要特征包括以下几点：
a) High-resolution train location determination, independent of track circuits
不依靠轨道电路、高精度的列车定位
b) Continuous, high capacity, bidirectional train-to-wayside data communications
连续的、大容量的双向车-地数据通信
c) Train-borne and wayside processors performing vital functions
车载和轨旁计算机执行安全功能
4.2 Categorization of CBTC systems
CBTC系统的分类
This standard recognizes that different configurations of CBTC systems are possible, depending on the spe-cific application. For example, a CBTC system may
该标准认定不同配置的CBTC系统是可能的，取决于特定的应用。例如，一个CBTC系统可能是：
a) Provide ATP functions only, with no ATO or ATS functions.
只提供ATP功能，没有ATO和ATS功能
b) Provide ATP functions, as well as certain ATO and/or ATS functions, as required to satisfy the
operational needs of the specific application.
提供ATP功能，同样也提供一定的ATS和ATO功能，能够满足特定应用的操作需求。
c) Be the only train control system in a given application or may be used in conjunction with other
auxiliary wayside systems.
是既定应用的唯一列车控制系统，或者可能与其它辅助轨旁系统一同工作。
A typical functional block diagram for a CBTC system is given in Annex B.
4.3 Range of applications
The CBTC performance and functional requirements defined in this standard are intended to be applicable to the full range of transit applications, including light rail, heavy rail, and commuter rail transit systems, and shall be applicable to other transit applications, such as automated people movers (APMs) if CBTC is used for ATC.
include中文 该标准定义的CBTC系统的性能和功能需求可以满足所有线路应用，包括轻轨、重轨和通勤铁路；该标准也能够用于其它线路应用如旅客捷运系统，如果配置ATC的话。
NOTE—ASCE 21-96 [B3] establishes additional requirements related to operating environment, safety requirements,system dependability, and audio/visual communications for APM systems.
It is the intent of this standard that tiered levels of functionality, and interoperability between equipment provided by multiple vendors, are facilitated to the extent required by the authority having jurisdiction. All CBTC systems shall include ATP functions.
该标准的内容是针对不同设备提供商从功能上和互用性上进行分层，在一定程度上能更易使用。所有的CBTC系统都应包括ATP功能。
4.4 Train configurations
列车配置
A CBTC system shall be capable of supporting a variety of train configurations, including the following:一个CBTC系统应当能够支持不同的列车类型，包括以下：
a) Fixed-length unidirectional trains comprised of one or more basic operating units
由一个或多个基本单位组成的固定长度的、单方向的列车
b) Fixed-length bidirectional trains comprised of one or more basic operating units
由一个或多个基本单位组成的固定长度的、双方向的列车
c) Variable-length unidirectional trains
可变长度的、单方向的列车
d) Variable-length bidirectional trains
可变长度的、双方向的列车
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系统能够支持混跑类型列车
4.5 Train operating modes
列车操作模式
CBTC-equipped trains may be operated by either a single person or a multi-person crew. A
CBTC system may also be required to support operation of trains without crews.
装备CBTC系统的列车可以由一个人或者多人操作，同样能够支持无人驾驶。
For operation of trains with crews, the train operator will typically be stationed in the lead car of the train and will be responsible for moving the train from station to station. With a multi-person crew, the conductor(s) will normally operate from conductor position(s) within the train to operate the train’s doors. A CBTC system shall support single-person train operation by combining the conductor and train operator display information on the train operator’s display. For multi-person crews, conductor display information shall also be provided on separate conductor displays.

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