Signal system Mt. Morris, Mich., and Bridgeport, 20-mile section of single track between two lines of double track; signals, and power-switch machines for passing tracks, are controlled by train controller located in office at McGrew yard at North Flint; train movements directed by signal indication, and passing-track switches power operated, on 20 mi. of single track; train movements recorded automatically how machine is operated; roadside-control features of system. (see also Ry. Age, vol. 85, no. 14, Oct. 6, 1928, pp. 665-668, 4 figs)
Pere Marquette installs centralized control signal system
Ry. Signaling
Railway Signaling ; 21 , n 10
1928
5 pages
6 Figs.
Aufsatz (Zeitschrift)
Englisch
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