Automatic and manual control of electric gates and wigwags solves problem at 13 crossings; track and signal plan of crossing protection through Chatham given; notes on previous protection and changes, and special control systems.
Crossing protection at Chatham, Ont., on Canadian Pacific
Ry Signaling
Railway Signaling ; 32 , n 8
1939
3 pages
Aufsatz (Zeitschrift)
Englisch
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