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Comment: Re:No absolute speed governor? (Score 1) 393

I've played around in a simulator - what's the system that requires the driver to acknowledge speed changes? I think it's popular in Europe. From my understanding, the board makes a noise and a light, and the driver has to mash a button. If they fail to mash the button within the grace period, the train cuts acceleration and applies braking. The idea behind this is to ensure the driver is not inattentive (for whatever reason - heart attack, falling asleep, texting, rock throwing...)

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