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A horizontal curve is being designed through mountainous terrain for a four-lane road with lanes are 10 ft wide. The central angle (Δ) is 40°, the tangent distance is 520 ft, and the stationing of the
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A horizontal curve is being designed through mountainous terrain for a four-lane road with lanes are 10 ft wide. The central angle (Δ) is 40°, the tangent distance is 520 ft, and the stationing of the PI is 2600+00. The coefficient of friction is .08 and the curve’s superelevation is .09 ft/ft. What is the stationing of the PC and PT, and what is the safe vehicle speed?

User Nike Kov
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A horizontal curve is being designed through mountainous terrain for a four-lane road-example-1
User Jaaq
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