I need an answer asap. Complete solution. Subject: highway engineering
Extracted text: A sag vertical curve is to be designed to join a -4% grade to a +2% grade. If the design speed is 45 mi/h, determine the minimum length of the curve that will satisfy all criteria. Assume a = 11.2 ft/sec2 and perception-reaction time t = 2.5 sec. Use g = 32.2 ft/sec2 %3D