Economic value of spring switches proven by (1) elimination of train stops; (2) elimination of operators; savings made by installation of interlocking plant at track crossings; by installation of automatic block signals to replace manual block signals; replacement of oil lamps by electricity; dispatcher-controlled signal installation. Report before Am. Ry. Eng. Assn. (see also Ry. Age (Daily Edition), vol. 86, no. 9A, Mar. 5, 1929, pp. D10-D14)
Economics of railway signaling
Am. Ry. Assn. -- Signal Section Proc
1929
16 pages
3 Figs.
Aufsatz (Zeitschrift)
Englisch
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Economics of railway signaling
Engineering Index Backfile | 1930
Economics of railway signaling
Engineering Index Backfile | 1929
Economics of railway signaling
Engineering Index Backfile | 1929
Economics of railway signaling
Engineering Index Backfile | 1930
Economics of railway signaling
Engineering Index Backfile | 1930