A track-to-train communication and safety system that monitors a locomotive's speed against the current signal indication. If the engineer fails to acknowledge a restrictive signal or fails to brake appropriately, the system automatically cuts traction power and applies the air brakes to stop the train before a collision or derailment can occur.
Heard on the job
The automatic train control dropped the air on us because I was two miles an hour over the limit coming into the block.
Also heard as
- ATC