An automatic train stop is a system on a train that will automatically stop a train if certain situations happened (unresponsive train operator, earthquake, disconnected rail, train running over a stop signal, etc.) to prevent accidents from happening. In some scenarios it functions as a type of dead man's switch.
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Famous quotes containing the words automatic, train and/or stop:
“Natural selection, the blind, unconscious, automatic process which Darwin discovered, and which we now know is the explanation for the existence and apparently purposeful form of all life, has no purpose in mind. It has no mind and no mind’s eye. It does not plan for the future. It has no vision, no foresight, no sight at all. If it can be said to play the role of the watchmaker in nature, it is the blind watchmaker.”
—Richard Dawkins (b. 1941)
“In order to really enjoy a dog, one doesn’t merely try to train him to be semihuman. The point of it is to open oneself to the possibility of becoming partly a dog.”
—Edward Hoagland (b. 1932)
“When a man of sense happens to be in that disagreeable situation in which he is obliged to ask himself more than once, What shall I do? he will answer himself, Nothing. When his reason points out to him no good way, he will stop short, and wait for light. A little busy mind runs on at all events, must be doing; and, like a blind horse, fears no dangers, because he sees none. Il faut scavoir s’ennuïer.*”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)