A 12-degree simple curve is to be designed for a maximum speed of 88kph. The coefficient of friction between the tires and pavement is 0.40. What is the required super elevation? a. 24.20% b. 25.10% c. 23.80% d. 26.560%

Determine variables requested below for a horizontal curve with the following characteristics. Length of curve 1255', Radius 1200', sta of PC 12+00 superelevation rotated about the roadway centerline, 3 lane roadway, 14ft lane width, entire road section normal crown=2%, road design speed=60 mph, max superelevation=8% 2) The design/full superelevation, in %, is: O 7.2 O 7.4 O 7.6 O 7.8 O 8.0