Installation of crossing gates, controlled automatically by track circuits, to replace wigwag signal in residential section of eastern part of Louisville, Ky. (see also Ry Age v 101 n 5 Aug 1 1936 p 182-4)
Automatic crossing gates installed on Louisville and Nashville
Ry Signaling
Railway Signaling ; 29 , n 4
1936
4 pages
Aufsatz (Zeitschrift)
Englisch
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