Device for railroad underpass includes 132 lb rail supported in iron brackets, bolted to plate girder of bridge; detector movement of 3/8 in. or more by high load on truck traveling beneath it, sets signals governing train movements over bridge to stop for bridge inspection; detectors are incorporated in Southern Pacific centralized traffic control territory in Oregon. (See also Ry Signaling and Communications v 48 n 11 Nov 1955 p 27, 30)
Highway high-load detector saves train delays
Ry Age
Railway Age ; 140 , n 6
1956
Aufsatz (Zeitschrift)
Englisch
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