Automatic train protection

ATP switchboard in a Taiwan Railways Administration DR2700 series carriage
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.

See also

References

Uses material from the Wikipedia article Automatic train protection, released under the CC BY-SA 4.0 license.