How to Calculate Set Back Distance by Approx Method (L is less than S)?
Set Back Distance by Approx Method (L is less than S) calculator uses Set Back Distance = (Length of Curve*(2*Stopping Sight Distance-Length of Curve))/(8*Radius of Curve) to calculate the Set Back Distance, Set Back Distance by Approx Method (L is less than S) 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 the length of the curve is less than sight distance. Set Back Distance is denoted by m symbol.
How to calculate Set Back Distance by Approx Method (L is less than S) using this online calculator? To use this online calculator for Set Back Distance by Approx Method (L is less than S), enter Length of Curve (Lc), Stopping Sight Distance (SSD) & Radius of Curve (Rt) and hit the calculate button. Here is how the Set Back Distance by Approx Method (L is less than S) calculation can be explained with given input values -> 10.5 = (140*(2*160-140))/(8*300).