Installation used by trains of Maine Central and Boston and Maine extends 1 1/4 mi, and includes passenger station layout, junctions and river bridge; control machine indicates track lineup before lever is thrown to clear signals.
At Portland terminal combined interlocking
Ry Signaling Communications
Railway Signaling and Communications ; 48 , n 3
1955
4 pages
Aufsatz (Zeitschrift)
Englisch
© Metadata Copyright Elsevier B. V. All rights reserved.
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