PRIN.OF HIGHWAY ENGINEERING&TRAFFIC ANA.
PRIN.OF HIGHWAY ENGINEERING&TRAFFIC ANA.
7th Edition
ISBN: 9781119610526
Author: Mannering
Publisher: WILEY
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Chapter 3, Problem 47P
To determine

The superelevation required at the design speed, also compute the degree of curve, length of the curve, and stationing of the PC, and PT.

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A single-lane racetrack is being constructed with a 150 mph design speed. A curve on this track has a radius of 4500 ft, central angle of 30 degrees, and a PI located at station 150+40. If the coefficient of side friction is 0.3, what superelevation is required for safe vehicle travel at the design speed? Also, determine the length of the curve and station of the PC and PT.
A developer is having a single-lane raceway constructed with a 160 km/h design speed. A curve on the raceway has a radius of 305 m, a central angle of 30 degrees, and Pl stationing at 375 +030. If the design coefficient of side friction is 0.20, determine the superelevation required at design speed. Also, compute the degree of curvature. length of 1 curve and stationing of the PC and PT. b. With an aid of a sketch define Camber and explain how the amount of camber is decided What are the disadvantages associated with excessive camber? VOS
A roadway is being designed for a speed of 60 mi/h. At one horizontal curve, it is known that the superelevation is 7.0% and the coefficient of side friction is 0.10. Determine the minimum radius of curve (measured up to the traveled path) that will provide for safe vehicle operation. Use g = 32.2 ft/sec2
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