Missouri Pacific eliminates train orders by directing train movements with signals. (See also Ry. Age vol. 77, no. 19, Nov. 8, 1924 pp. 843-847, 9 figs)
Controlled manual block with train control
Ry. Signaling
Railway Signaling ; 17 , n 11
1924
6 pages
12 Figs.
Article (Journal)
English
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Controlled manual block with train control
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