Interest in remote power switches and direction of trains by signal indication; excellent prospects for 1930; train control quiet; interlocking construction in 1929; tables giving automatic block signals completed and under construction 1929; those contemplated for 1930, interlocking plants completed and under construction 1929, interlocking plants contemplated for 1930, retarder installations completed during 1929. (see also Ry. Signaling, vol. 26, no. 1, Jan. 1930, pp. 1-12, 4 figs.)
Signaling construction increased during 1929
Ry. Age
Railway Age ; 88 , n 1
1930
1 Fig.
Article (Journal)
English
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Signaling construction increased during 1929
Engineering Index Backfile | 1930
|Signaling construction increased during 1936
Engineering Index Backfile | 1937
Signaling construction increased in 1943
Engineering Index Backfile | 1944
|Increased signaling construction in 1940
Engineering Index Backfile | 1941
|Signaling construction increased in 1943
Engineering Index Backfile | 1944