Substantial increase in construction of signaling, especially centralized traffic control and automatically controlled highway-railroad grade crossing protection, as well as continued activity in construction of new types of interlocking reduction in number of car retarders installed in freight classification yards. (see also Ry Signaling v 39 n 1 Jan 1946 p 45-51)
Signal construction increased during 1945
Ry Age
Railway Age ; 120 , n 1
1946
7 pages
Aufsatz (Zeitschrift)
Englisch
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Signal construction increased during 1945
Engineering Index Backfile | 1946
|Signal construction increased during 1936
Engineering Index Backfile | 1937
|Signal construction increased in 1942
Engineering Index Backfile | 1943
Signaling construction increased during 1929
Engineering Index Backfile | 1930
|Signaling construction increased during 1936
Engineering Index Backfile | 1937