Patent ID: 7010412
Filing Date: 2006-03-07
Classification: E01C,G09B

Abstract:
1. In a method for designing a road, an improvement comprising calculating parameters A 1 and A 2 in an S-shaped clothoid with R 1 , R 2 , D and being known values and R 1 and R 2 being radii of two circles and A 1 and A 2 being clothoid parameters A adapted to R 1 and R 2 , respectively, and D being a shortest distance between circumferential portions of two circles, a method for calculating the S-shaped clothoid parameter comprising: a step in which an initial value of a tangential angle τ a step in which the tangential angle τ a step in which a value of (R a step in which a ratio is calculated; a step in which τ a step in which an absolute value of G is compared with a tolerance of 10