Communications-based train control

Communications-based train control (CBTC) is a railway signaling system that uses telecommunications between the train and track equipment for traffic management and infrastructure control. CBTC allows a train's position to be known more accurately than with traditional signaling systems. This makes railway traffic management safer and more efficient. Metros (and other railway systems) are able to reduce headways while maintaining or even improving safety.

"CBTC" redirects here. For other uses, see CBTC (disambiguation).
CBTC deployment in Madrid Metro, Spain.
Santo Amaro station on Line 5 of the partially CBTC-enabled São Paulo Metro
Some of the top 30 world's busiest metros in terms of annual passenger rides utilise a CBTC system.
Automated track-bound traffic
Automatic train operation
Lists of automated train systems
Related topics

A CBTC system is a "continuous, automatic train control system utilizing high-resolution train location determination, independent from track circuits; continuous, high-capacity, bidirectional train-to-wayside data communications; and trainborne and wayside processors capable of implementing automatic train protection (ATP) functions, as well as optional automatic train operation (ATO) and automatic train supervision (ATS) functions," as defined in the IEEE 1474 standard.

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