A sag vertical curve is to be designed to join a -5% grade to a 2% grade. If the design speed is 70km/h, a) Calculate th
Posted: Wed Jun 08, 2022 6:19 am
A sag vertical curve is to be designed to join a -5% grade to a 2% grade. If the design speed is 70km/h, a) Calculate the SSD. b) Determine the minimum length of the curve that will satisfy all criteria and discuss the cases where S<L and S>L. Assume a-3.414m/s² and perception-reaction time equal to 2.5 sec. Tip: Consider the worst-case grade of G=-5%.