{{short description|System installed in trains to prevent collisions through driver error}} {{Use dmy dates|date=February 2020}} {{for|British Rail's implementation of ATP|Automatic Train Protection (United Kingdom)}}

[[File:DR2700-10706333156.jpg|thumb|ATP switchboard in a Taiwan Railways Administration DR2700 series carriage]] [[File:GWR HST ATP notice 1 (cropped).jpg|thumb|Automatic Train Protection notice on a 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.<ref>{{Cite web|url=https://data.europa.eu/data/datasets/era-glossary-of-railway-terms?locale=en|title=ERA Glossary|website=ERA.Europa.eu|access-date=18 July 2023|url-status=live|archive-url=https://web.archive.org/web/20170506005106/http://www.era.europa.eu/Document-Register/Documents/Glossary%20of%20railway%20terminology-selection-%20EN-FR-DE.pdf.pdf|archive-date=6 May 2017}}</ref>

== See also == * Advanced Civil Speed Enforcement System * Anti Collision Device * Automatic Warning System * Automatische treinbeïnvloeding (ATB) * Automatic train control * British Rail's ATP system * Continuous Automatic Warning System (CAWS) * EBICAB * European Train Control System (ETCS) * Kavach * Positive Train Control (PTC) * Punktförmige Zugbeeinflussung (PZB) * Train Protection & Warning System * Train Warning System * Transmission Voie-Machine (TVM)

== References == {{Reflist|30em}}

{{Railwaysignalling}}

{{rail-transport-stub}}

Category:Train protection systems