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Highway Engineering - Engineering

Q1:

If the designed speed on a circular curve of radius 1400 m is 80 km/hour, no superelevation is provided, if the camber, is

A 4%

B 3%

C 2%

D 1.7%

ANS:C - 2%

In case no super elevation = V^2/225R.
= 80X80X100/225X1400.
= 2 %.