Automatic signaling and interlocking installed on extensions of Eighth Avenue line of subway system; to serve Brooklyn, Queens and Bronx; special controls; traffic-direction control; master lever control; opening tower on 3-track line; bringing interlocking into service requires reversal of master lever.
Signaling of New York subways
Ry Signaling
Railway Signaling ; 27 , n 4
1934
6 pages
Article (Journal)
English
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