Type of installation; location of signals; typical track and signal layout; economy of automatic signaling. (See also - discussion p 301-308)
Some economic problems of automatic block signaling a single-track railroad
Am. Ry. Assn. (Signal Section) -- Proc
1926
16 pages
11 Figs.
Article (Journal)
English
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Automatic block signaling for single-track railways
Engineering Index Backfile | 1912
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