Synonyme wurden verwendet für:
SIGNAL
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keywords:(SIGNAL)
Signals in rails given to motorman
Technical aids to safer driving
Aids to navigation in harbours and ports
Burlington installs modified CTC
Interlocking saves time and money for belt railway of Chicago
New Haven consolidated control of nine interlocking layouts
Double to single track with CTC
CTC saves time for freights on 135 miles of single track
Safety at sea through marine signals
Modern signaling means fewer tracks
CTC increases capacity of double track
Signal construction [midline ellipsis] 1952
On Canadian national C.T.C. for 12 trains daily
C.T.C. saves train time on heavy traffic terminal territory
Canadian national installs centralized traffic control on 117-mile sub-division