Replacement reported by Class I roads in United States and Canada continued at low levels, although some lines showed substantial increases; statistics of crosstie renewals on leading railroads in United States and Canada for year ending Dec 31 1947, given in tables.
Tie renewals down slightly in 1947
Ry Age
Railway Age ; 125 , n 6 ; p 288-291
1948
4 pages
Aufsatz (Zeitschrift)
Englisch
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