Transportation problems in conjunction with lack of adequate underground space in Ruhr district necessitated use of new track display type of switch control installation provided by railroad signaling division of Siemens and Halske AG; operation of system and traffic control.
Railway signal engineering in underground coal mining
Handling, Conveying, Automation -- Int (English Ed Foerdern u Heben)
1961
5 pages
Article (Journal)
English
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