Rerouting of trains and installation of spring switches reduced delays to train movements at Arlington on lines of Baltimore and Ohio; line double tracked for 4.5 mi from St George to Mariners Harbor handling both passenger and freight traffic; track and signal layout showing location of spring switches.
Spring switches solve problem on staten island lines
Ry Signaling
Railway Signaling ; 27 , n 10
1934
2 pages
Article (Journal)
English
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