Modern methods of building new trackage of Northern Pacific used to preplate ties; using special equipment and techniques, long welded rail strings are unloaded and laid at rate of track-mile per day.
How NP builds track fast on line change
Ry Track Structures
Railway Track and Structures ; 62 , n 3 ; p 36-37
1966
2 pages
Aufsatz (Zeitschrift)
Englisch
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