Question: A circular horizontal curve has its B C at station 5 + 0 0 0 . The design speed is 1 1 5 k m

A circular horizontal curve has its BC at station 5+000. The design speed is 115kmh, the maximum superelevation is 0.080mm and camber is 2.0%. Assume a two-lane road is rotated about the center line and the lanes are 3.7m wide. Assuming that 60 percent of the superelevation development is attained on the tangent.
Determine the minimum length of the crown runoff.
Answer:
A circular horizontal curve has its B C at

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