Labor cost for 12 months $234,132.85 reduced to $93,291.16 with introduction of retarders; cost per car humped reduced from 38.2 to 13.9 cents with few injuries. Paper presented at Am. Ry. Eng. Assn. (See also - discussion p D16-D17)
Retarders effect economies on Norfolk and western
Ry. Age (Daily Edition)
Railway Age -- Daily Edition ; 86 , n 9
1929
Article (Journal)
English
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Car retarders reduce cost of yard operation on Norfolk and western
Engineering Index Backfile | 1928
Car retarders reduce cost of yard operation on Norfolk and western
Engineering Index Backfile | 1928
Car retarders reduce cost of yard operation on Norfolk and western
Engineering Index Backfile | 1928
Automotive engineering | 1994
Springer Verlag | 2021
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