3-lane freeway with 12' lanes will have a PVC at station 45+00. For a superelevation rate of 7%, determine the station at which the cross section is fully superelevated if the design speed is 60 mph. Use a maximum relative gradient of 0.45.

3-lane freeway with 12' lanes will have a PVC at station 45+00. For a superelevation rate of 7%, determine the station at which the cross section is fully superelevated if the design speed is 60 mph. Use a maximum relative gradient of 0.45.

Traffic and Highway Engineering

5th Edition

ISBN:9781305156241

Author:Garber, Nicholas J.

Publisher:Garber, Nicholas J.

Chapter10: Capacity And Level Of Service At Signalized Intersections

Section: Chapter Questions

Problem 10P

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Concept explainers

Drainage of Pavements

Pavement Drainage holds ample significance, as it prevents the accumulation of water or any liquid on the surface of pavements and ensures proper drainage system. With proper design and gradual slopes provided, the water gets easily removed from the surface into the drains, which are essential during heavy rains and unusual weather conditions keeping it less prone to accidents and increasing the durability of the pavement structure.

Question

A 3-lane freeway with 12' lanes will have a PVC at station 45+00. For a superelevation rate of 7%, determine the station at which the cross section is fully superelevated if the design speed is 60 mph. Use a maximum relative gradient of 0.45.

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