If a train driver falls asleep, what happens to the train?

This is a spring controlled switch, which when pressed down by the person driving the train (called Motorman for EMU type trains) allows the train to be normally operated, with current flowing to the traction motors providing the necessary Traction for motion. read more

ATS (Japan): auto train stop system works to stop the train, every check point the train driver must press the unlock button. ATS also controlled by remotely, it can notify the train heading the wrong lane or another is going to hit, speeding , schedule control, etc. read more

In case no button is pushed in 1 minute a siren will go off asking the driver to push a button. If nothing happens in 1 minute then immediately the locomotive is powered down and emergency brakes are applied this brings the train to a standstill. read more