No change in automatic train-control situation; improved operation saves huge sums. (see also Ry. Age (Daily Edition), vol. 90, no. 10C, Mar. 12, 1931, pp. 528-D87-88) (including discussion)
Report on signals and interlocking
Am. Ry. Eng. Assn. -- Bul
American Railway Engineering Association -- Bulletin ; 32 , n 334
1931
13 pages
Article (Journal)
English
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Report on signals and interlocking
Engineering Index Backfile | 1930
Report on signals and interlocking
Engineering Index Backfile | 1930
Report on signals and interlocking
Engineering Index Backfile | 1929
Report on signals and interlocking
Engineering Index Backfile | 1928
Report on signals and interlocking
Engineering Index Backfile | 1925