road is designed for a design speed of 65 mph. The road has a total of 8 lanes across both rections. Answer the following questions: prizontal alignment: (1) If a superelevation of 6% is used, calculate the minimum curve radius for that road. (2) Use the minimum design value, calculate the lateral clearance distance. ertical alignment: (3) Suppose the profile view of that road has an initial grade of -3% and a final grade of +4%. What is the minimum length of the vertical curve under the same design speed?

road is designed for a design speed of 65 mph. The road has a total of 8 lanes across both rections. Answer the following questions: prizontal alignment: (1) If a superelevation of 6% is used, calculate the minimum curve radius for that road. (2) Use the minimum design value, calculate the lateral clearance distance. ertical alignment: (3) Suppose the profile view of that road has an initial grade of -3% and a final grade of +4%. What is the minimum length of the vertical curve under the same design speed?

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter15: Geometric Design Of Highway Facilities

Section: Chapter Questions

Problem 19P

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