21/ On a section of rural highway, a combination of vertical and circular curve is used. a -6% grade meets a 2% grade at station 10+00 for the curve having length 3 station. Assume PRT = 2.5 sec, e =10% , side friction 0.11, friction between tire and pavement = 0.33. determine 1-speed on highway 2-design the circular curve. %3! 3- maximum degree of curve.

21/ On a section of rural highway, a combination of vertical and circular curve is used. a -6% grade meets a 2% grade at station 10+00 for the curve having length 3 station. Assume PRT = 2.5 sec, e =10% , side friction 0.11, friction between tire and pavement = 0.33. determine 1-speed on highway 2-design the circular curve. %3! 3- maximum degree of curve.

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 13P

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