Economic and operating aspects; results being obtained from installations now in service; cost of centralized traffic control and estimated savings.
Centralized traffic control
Ry Signaling
Railway Signaling ; 25 , n 2
1932
2 pages
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1931
Engineering Index Backfile | 1932
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Engineering Index Backfile | 1933