Crossing with Wabash protected by modern plant; highway-crossing protection special features; track-and-signal plan of plant at Springfield, Ill.; interlocking machine; signals and switch machines; special crossing signs.
Chicago and Illinois midland installs electric interlocking
Ry. Signaling
Railway Signaling ; 24 , n 10
1931
4 Figs.
Article (Journal)
English
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Belt railway of Chicago installs interlocking
Engineering Index Backfile | 1941
Erie installs electric interlocking
Engineering Index Backfile | 1939
U. P. installs electric interlocking
Engineering Index Backfile | 1927
C.B. And Q. Installs electric interlocking
Engineering Index Backfile | 1931
|Burlington installs extensive new electric interlocking
Engineering Index Backfile | 1932
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