Handling of heavy traffic on Delaware, Lackawanna and Western; track facilities and interlockers, signal aspects and indications, power supply, interlockings, switch movements, track circuits.
Signaling meadows line of D. L. and W
Ry. Signal Engr
Railway Signal Engineer ; 15 , n 12 ; p 465-472
1922
8 pages
18 Figs.
Aufsatz (Zeitschrift)
Englisch
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