Signal Forms
Signals differ both in the manner in which they display aspects and in the manner in which they are mounted with respect to the track.
Read more about this topic: Railway Signal
Famous quotes containing the words signal and/or forms:
“The experience of a sense of guilt for wrong-doing is necessary for the development of self-control. The guilt feelings will later serve as a warning signal which the child can produce himself when an impulse to repeat the naughty act comes over him. When the child can produce his on warning signals, independent of the actual presence of the adult, he is on the way to developing a conscience.”
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