Part of a railway signalling system, a train stop or trip stop (sometimes called a tripper) is a train protection device that automatically stops a train if it attempts to pass a signal when the signal aspect and operating rules prohibit such movement, or (in some applications) if it attempts to pass at an excessive speed.
Read more about Train Stop: Basic Operation, Types of Train Stops, Installations, Reverse Direction
Famous quotes containing the words train and/or stop:
“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)
“Even though I had let them choose their own socks since babyhood, I was only beginning to learn to trust their adult judgment.. . . I had a sensation very much like the moment in an airplane when you realize that even if you stop holding the plane up by gripping the arms of your seat until your knuckles show white, the plane will stay up by itself. . . . To detach myself from my children . . . I had to achieve a condition which might be called loving objectivity.”
—Anonymous Parent of Adult Children. Ourselves and Our Children, by Boston Women’s Health Book Collective, ch. 5 (1978)