Installation of new search light-type automatic block signals to replace two-arm lower-quadrant semaphores on 11 mi of 4-track road, between Ridgewood, N J, and Suffern, in which train speeds are increased and delays reduced. (see also Ry Age v 98 n 20 May 18 1935 p 772-3)
New automatic signals increase track capacity and safety on Erie
Ry Signaling
Railway Signaling ; 28 , n 6
1935
Aufsatz (Zeitschrift)
Englisch
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