Dead Man's Switch
The earliest safety device was the dead man's switch, which requires no track-side equipment.
Read more about this topic: Automatic Train Protection
Famous quotes containing the words dead man, dead, man and/or switch:
“All my life I’ve been running, from welfare officers, thugs, my father. See, there they are [the killers]. There on the bridge. I’m a dead man. Nosseros told me that. He told me. He said, “You got it all, but you’re a dead man, Harry Fabian.””
—Jo Eisinger, and Jules Dassin. Harry Fabian (Richard Widmark)
“If it were possible to cure evils by lamentation and to raise the dead with tears, then gold would be a less valuable thing than weeping.”
—Sophocles (497–406/5 B.C.)
“In two or three hundred years life on earth will be unimaginably beautiful, astounding. Man needs such a life and if it hasn’t yet appeared, he should begin to anticipate it, wait for it, dream about it, prepare for it. To achieve this, he has to see and know more than did his grandfather and father.”
—Anton Pavlovich Chekhov (1860–1904)
“Children ... after a certain age do not welcome parental advice. Occasionally, they may listen to another adult, which is why perhaps people should switch children with their neighbors and friends for a while in the teen years!”
—Marian Wright Edelman (20th century)