St. Louis-San Francisco Railroad installs plant including crossing with Missouri Pacific and double track junction which involves 120 train movements daily over busy dayout; interlocking is of route type, in which interlocking between functions is accomplished by interconnection of circuits and each route is established by operation of two push buttons.
Route type interlocking at tower grove in St. Louis, Mo.
Ry Signaling
Railway Signaling ; 33 , n 5
1940
Aufsatz (Zeitschrift)
Englisch
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