Davies, Charles, 1798-1876 · New York, Cincinnati [etc.] American book company · leaf 327
last example ?Formula (3) gives 5729.58 C =: = 2.°5587 = 2° 33 31. 4. The angle a being 20° 21, what is the value of d for a one-degree curve ? Ans. Location of Curves by one Transit. 354. The location of curves, according to the most commonmethod, consists in laying off, at the point of tangency… … The angles DAv, vAw, wAx, are each equal to one-half thedegree of curvature (Leg., Bk. Ill, Prop. 7, Sch., and Prop. 21). The operations in the field are very simple. The partyshould consist of a transitman, two chainmen, and an axe-man. BOOK IX.] RAILWAY CURVES. 321 The transit is set and adjusted…
Surveying
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
