Automatic train control (ATC) is a general class of train protection systems for railways that involves a speed control mechanism in response to external...

Automatic train protection (ATP) is the generic term for train protection systems that continually check that the speed of a train is compatible with the...

Automatic train stop or ATS is a system on a train that automatically stops a train if certain situations occur (unresponsive train operator, earthquake...

improving safety. A CBTC system is a "continuous, automatic train control system utilizing high-resolution train location determination, independent from track...

most. Alternatively, ATO can be defined as a subsystem within the automatic train control, which performs any or all of functions like programmed stopping...

Positive train control (PTC) is a family of automatic train protection systems deployed in the United States. Most of the United States' national rail...

no contact. The Great Western Railway in the UK introduced its 'automatic train control' system in the early years of the 20th century. Each distant signal...

Automatic Warning System (AWS) is a railway safety system invented and predominantly used in the United Kingdom. It provides a train driver with an audible...

blocks. The system controls the movement of trains between the blocks using automatic signals. ABS operation is designed to allow trains operating in the...

Centralized traffic control (CTC) is a form of railway signalling that originated in North America. CTC consolidates train routing decisions that were...