Elements of surveying and levelling; with descriptions of the instruments and the necessary tables (1870)
Davies, Charles, 1798-1876 · New York and Chicago, A. S. Barnes & Company · leaf 225
of curvature in the last example ?Formula (3) gives 5729.58 c = = 2.558° = 2° 33 29. 4. The angle a being 20° 21, what is the value of d for a one-degree curve ? Ans. The Location of the Cukye. 39. The location of curves, according to the most commonmethod, consists in laying off, at the point of… … The angles DAv, vAw, ivAx, are each equal to one-half thedegree of curvature. (Leg., Bk. III., Prop. 1^8.) The operations in the field are very simple. The partyshould consist of a transitman, two chainmen, and an axe-man. SEC. in.] RAILWAY CUBVES. 223 The transit is set and adjusted at a tangent…
Surveying
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