While designing hair pin bends on highways, the minimum
(A) Designed speed is 20 km/hour
(B) Gradient is 1 in 40
(C) Gradient is 1 in 200
(D) All the above
(A) Designed speed is 20 km/hour
(B) Gradient is 1 in 40
(C) Gradient is 1 in 200
(D) All the above