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    IEEE Standard for Communications-Based Train Control (CBTC) Performance and Functional Requirements

    IEEE-1474.1ActiveOfficial catalogue

    Issuing body: IEEE Standards Association (IEEE SA) · Version: IEEE 1474.1-2025 · Published: 2025-06-13

    Link verified July 22, 2026

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    Scope

    Defines the performance and functional requirements for Communications-Based Train Control (CBTC) systems — headway, safety and availability criteria alongside the automatic train protection, operation and supervision functions a CBTC installation must deliver. Applies across the full range of transit applications, including automated people movers, and anchors the wider IEEE 1474 CBTC standards family.

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