Simple formulas given for permissible speeds and elevations, equilibrium speeds and elevations, lengths of spirals, and offsets and ordinates of spiral curve; formulas accompanied by tables which permit quick selection of elements of problem best suited to known conditions; study based on unbalanced elevation of 3 in. and rate of runoff of elevation of 1 1/4 in. per sec.
Relation of transition curves to speed and superelevation
Am Ry Eng Assn -- Bul
American Railway Engineering Association -- Bulletin ; 43 , n 426
1941
9 pages
3 Supp sheets
Article (Journal)
English
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