IEEE 1474.4-2011
Based Train Control (CBTC) System
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About This Item
1474.4-2011 is a technical standard for a Communications-Based Train Control (CBTC) system, offering guidance that can support safer and more coordinated railway operations. It is relevant to transportation environments where signaling, control, and communications must work together reliably. By addressing the CBTC context directly, 1474.4-2011 helps frame expectations for system behavior, integration, and performance in rail applications that depend on precise train movement supervision.
Overview of 1474.4-2011
This standard focuses on the technical setting of a Based Train Control (CBTC) system, where train control functions rely on communication links and signal processing rather than conventional fixed-block approaches alone. 1474.4-2011 is useful as a reference point for engineers, integrators, and procurement teams working with rail control architectures that combine computing, networking, and electronic control equipment. Its value lies in helping define a consistent basis for design and evaluation.
Typical use cases
1474.4-2011 may be used when specifying CBTC-related subsystems for metro lines, automated rail corridors, or other transit installations that require continuous train supervision. It can also support engineering work involving onboard equipment, wayside communication networks, control centers, and signal processing components tied to train movement authority. In practice, the standard is most relevant where reliable coordination between trains and infrastructure is central to system operation.
Why it matters
For rail projects, a focused standard such as 1474.4-2011 can help reduce ambiguity during design, procurement, testing, and system acceptance. Clear technical expectations are especially important in CBTC environments, where communication reliability and control consistency affect service performance and operational safety. Using the standard as a reference may also improve interoperability across components and suppliers, while supporting more disciplined compliance and risk management throughout the project lifecycle.
- CBTC system context
- Train control and communications
- Signal processing and networking
- Rail integration and evaluation
- Inactive standard status
- Publication Date: 2011
- Standard Status: Inactive
- Publisher: IEEE
- Subject: Transportation; Signal Processing and Analysis; Power, Energy and Industry Applications; Communication, Networking and Broadcast Technologies; Components, Circuits, Devices and Systems; Computing and Processing
- Official IEEE: Doi link
- This Version: 1474.4 (2011)
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