Discussion by section and summary of signaling methods adopted.
Signaling of lines for fast traffic and in main stations. Daylight signals. Automatic block system
Int. Ry. Congress Assn. -- Bul
1931
20 pages
Article (Journal)
English
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Engineering Index Backfile | 1929
|Signaling, daylight signals, and the automatic block system
Engineering Index Backfile | 1930
|