Automatic train protection

DR2700 series

carriage

First Great Western InterCity 125

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 permitted speed allowed by signalling, including automatic stop at certain signal aspects. If it is not, ATP activates an emergency brake to stop the train.^[1]

References

^ "ERA Glossary". ERA.Europa.eu. Archived (PDF) from the original on 6 May 2017. Retrieved 18 July 2023.

v t e Railway signalling
Block systems	Absolute block signalling Automatic block signaling Centralized traffic control Communications-based train control Direct traffic control European Train Control System Moving block Radio Electronic Token Block Token Track Warrant Control Train order operation
Signalling control	Block post Integrated Electronic Control Centre Interlocking Lever frame Rail operating centre Solid State Interlocking Westlock Interlocking
Signals	Application of railway signals Cab signalling North American railroad signals Railway semaphore signal
Train detection	Axle counter Track circuit Track circuit interrupter Treadle
Train protection	Advanced Civil Speed Enforcement System ALSN ASFA ATACS Automatic train control Automatic train operation Automatic train protection Automatic Train Protection (United Kingdom) Automatic train stop Automatic Warning System Automatische treinbeïnvloeding Balise Catch points Chinese Train Control System Cityflo 650 CBTC Continuous Automatic Warning System Contrôle de vitesse par balises EBICAB IIATS Integra-Signum Interoperable Communications Based Signaling Crocodile Linienzugbeeinflussung Positive Train Control Pulse code cab signaling Punktförmige Zugbeeinflussung RS4 Codici SelTrac Sistema Controllo Marcia Treno SACEM Slide fence Train automatic stopping controller Train Protection & Warning System Train stop Trainguard MT Transmission balise-locomotive Transmission Voie-Machine
Crossing signals	Level crossing signals Crossbuck Wigwag E-signal Wayside horn
Manufacturers	Adtranz Alstom AŽD Praha Federal General Electric GRS Griswold Hall Hitachi Magnetic Progress Rail Safetran Saxby Siemens Smith and Yardley Thales Union Switch Westinghouse Brake & Signal Westinghouse Rail Systems
Organisations	AAR AREMA ERA FRA HMRI IRSE Transport Canada UIC
By country	Australia Bavaria Belgium Canada China Finland France Germany Greece Italy Japan Netherlands New Zealand North America Norway Poland Sweden Switzerland Thailand United Kingdom

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See also

References