Interlockings reconstructed, automatic signals replaced, cab signaling added; map showing territory involving changes in signals and interlockings; traffic control; track circuits; power supply and distribution.
Re-signaling of Reading electrified territory
Ry. Signaling
Railway Signaling ; 24 , n 9 ; p 303-308
1931
6 pages
9 Figs.
Aufsatz (Zeitschrift)
Englisch
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