At Salem, Mass, old mechanical plant at junction has been replaced by new electric interlocking which also includes remote end of double track at far end of tunnel, new switches leading to enginehouses, and separate remote layout at wharf track including two switches.
Brick tower moved 40 feet -- New electric interlocking installed on Boston and Maine
Ry Signalling Communications
Railway Signaling and Communications ; 45 , n 5
1952
3 pages
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
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