DEAD MAN’S SWITCH

A dead man’s switch is an emergency brake that automatically activates to stop a vehicle or machine in the event that the operator becomes incapacitated. This sort of safety measure became necessary with the advent of electric trains, since they cut the number of required operators down to one, and has become standard in numerous devices, including snowblowers, lawn mowers, and saws. Though developed as a fail-safe, a dead man’s switch can sometimes be a “fail-deadly,” as when built into what? More…Discuss