5-7. A simple curve has I = 56°36' and D. = 5°. (a) Replace it by a double spiral having the same radius at its midpoint
Posted: Tue Apr 26, 2022 1:25 pm
5-7. A simple curve has I = 56°36' and D. = 5°. (a) Replace it by a double spiral having the same radius at its midpoint. Find: L, T, and E. Answers: L=1132; T,= 1203.30; E, = 208.02. (b) How much longer is the double spiral of problem (a) than the original simple curve? Is the result a coincidence or is it required by theory? Prove your conclusion. (c) Replace the simple curve by a double spiral passing through the same midpoint. Find: L, T, and E. Answers: L. = 846.54; T, - 899.86; E, = 155.56.