Entire layout is track-circuited with 90 a-c track circuits and full point and sectional route locking is installed, allowing maximum freedom of movement; sectional diagram of lines and signals; interior of signal cabin shown; position-light signals. From Zeit fuer das gesamte Eisenbahn-Eicherungswesen.
Norwegian power signalling installation
Ry Gaz
Railway Gazette and Railway News ; 61 , n 15
1934
3 pages
Article (Journal)
English
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