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 and/or switch:
“Beside a dead person is a living ghost.”
—Chinese proverb.
“George Peatty: Tell me something, wouldya Sherry? Just tell me one thing. Why did you ever marry me anyway?
Sherry Peatty: Oh, George. When a man has to ask his wife that, well, he just hadn’t better, that’s all. Why talk about it? Maybe it’s all to the good in the long run. After all, if people didn’t have headaches what would happen to the aspirin industry?”
—Stanley Kubrick (b. 1928)
“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)