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:
“By day thy warning ringing bell to sound its notes,
By night thy silent signal lamps to swing.”
—Walt Whitman (1819–1892)
“An aristocratic culture does not advertise its emotions. In its forms of expression it is sober and reserved. Its general attitude is stoic.”
—Johan Huizinga (1872–1945)