Estimating examples for use in determining economic value of remotely controlled switch installation; operating results before and after use of automatic-block signals, replacing manual-block signals on double-track line between Cincinnati, Ohio and Greensburg, Ind., 58.3 mi. on C.C.C. and St. L. Ry.; reports and papers relating to economics of railway operation presented at 36th meeting of American Association of Railroad Superintendents.
Economics of railway signaling
Am. Ry. Assn. -- Signal Section Proc
1930
4 pages
Article (Journal)
English
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Economics of railway signaling
Engineering Index Backfile | 1930
Economics of railway signaling
Engineering Index Backfile | 1929
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|Economics of railway signaling
Engineering Index Backfile | 1930
Economics of railway signaling
Engineering Index Backfile | 1929