Crossing gate projects installed by Richmond, Fredericksburg and Potomac, utilize locomotive whistle to actuate system for lowering gates at some points, and radio control from locomotive cab at others. (see also Ry Age v 137 n 23 Dec 6 1954 p 40-2)
Locomotive whistle and radio control crossing gates
Ry Signaling Communications
Railway Signaling and Communications ; 47 , n 10 ; p 27-29
1954
3 pages
Article (Journal)
English
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