Comment by jimnotgym

I have also seen a separate deadman device installed on some trains, it beeps, you push a button or the train stops.

I find it very strange that the example trains crashed at 21mph....was the deadman brake already slowing them down?

Because if the driver was decelerating deliberately I find it difficult to beehive that is when they fell asleep

I've never driven a train, but i have driven a car.