Automatic block signals on 132-mi double-track freight line between Enola and West Morrisville, Pa, has effected marked economies in train operation; trains can be run at higher speeds with safety even with closer spacing between following trains; average freight-train speed increased saving 49 train-hr daily.
Pennsylvania expedites trains with signaling on 132-mile line
Ry Age
Railway Age ; 93 , n 10
1932
3 pages
Article (Journal)
English
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