Remotely controlled interlocking plant with centralized traffic control operation, including three switches, three crossovers, and seven signals, installed at Willows, near Ayer, Mass, which has reduced train delays and permitted release of 2.2 mi of double track main line.
C.T.C. Extension on Boston and Maine
Ry Signaling
Railway Signaling ; 40 , n 5
1947
4 pages
Aufsatz (Zeitschrift)
Englisch
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Engineering Index Backfile | 1933
Boston and Maine consolidates interlockings and C.T.C.
Engineering Index Backfile | 1948
Engineering Index Backfile | 1943
Engineering Index Backfile | 1950
|Engineering Index Backfile | 1947