(Solved): Given: Vertical profile data for the proposed two-lane rural highway are provided in Figure 3. The d ...

Given: Vertical profile data for the proposed two-lane rural highway are provided in Figure 3. The design speed is 70 mph . Find: a. Design the crest vertical curve to provide minimum stopping sight distance, and round up the length to the nearest 50 foot. Include the length of vertical curve, and PVC and PVT stations and elevations in your design. In addition, determine the high point of the crest vertical curve. Assume that "standard" AASHTO driver eye and object heights are appropriate. b. What minimum vertical curve length should be provided if the driver eye height is lowered to 3.0 feet and the object height is lowered to 1.0 feet for the crest vertical curve? Figure 3. Vertical Alignment for problem #2