Manual control plant in Vincennes, Ind, at crossing of Baltimore and Ohio with Chicago and Eastern Illinois and Pennsylvania saves train delays; types of signals on B and O are color position light type, on Pennsylvania position light type, and on C and E.I. color light type; track and signal plan for interlocking shown.
Simple interlocking saves many train stops
Ry Signaling Communications
Railway Engineering and Maintenance ; 44 , n 12
1951
2 pages
Aufsatz (Zeitschrift)
Englisch
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