Set Back Distance by Rational Method (L is greater than S) Single Lane evaluator uses Set Back Distance = Radius of Curve-Radius of Curve*cos((Stopping Sight Distance)/(2*Radius of Curve)) to evaluate the Set Back Distance, Set Back Distance by Rational Method (L is greater than S) Single Lane is defined as the distance required from the centerline of a horizontal curve to an obstruction on the inner side of the curve to provide adequate sight distance at a horizontal curve when length of the curve is more than sight distance. Set Back Distance is denoted by m symbol.
How to evaluate Set Back Distance by Rational Method (L is greater than S) Single Lane using this online evaluator? To use this online evaluator for Set Back Distance by Rational Method (L is greater than S) Single Lane, enter Radius of Curve (Rt) & Stopping Sight Distance (SSD) and hit the calculate button.