1.

The radius of a horizontal circular curve is 100 m. The design speed is 50 km/h and the design coefficient of lateral friction is 0.15. Determine the rate of superelevation to be provided, if full lateral friction is assumed to develop.

A. 1 in 17
B. 1 in 10.5
C. 1 in 21.2
D. 1 in 26.4
Answer» D. 1 in 26.4


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