Automatic signals completed on 5127 miles of road, 142 interlocking plants built and 2074 automatic highway crossing signals installed; interesting features of interlocking construction in 1927; highway-crossing protection increased; work under construction; train control in 1927. (see also Ry. Signaling, vol. 21, no. 1, Jan. 1928, pp. 11-24, 4 figs)
Signaling construction continues in large volume
Ry. Age
Railway Age ; 84 , n 1
1928
7 pages
2 Figs.
Article (Journal)
English
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Signaling construction continues in large volume
Engineering Index Backfile | 1928
|Signaling construction continues in average volume during 1928
Engineering Index Backfile | 1929
|Signaling and interlocking construction continues in 10-year average volume during 1928
Engineering Index Backfile | 1929
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