Question

Transition curves are introduced at each end of a circular curve to obtain:

• A. gradual decrease of curvature from zero at the tangent point to a specified quantity at the junction of the transition curve with the main curve
• B. gradual increase of super elevation from zero at the tangent point to a specified amount at the junction of the transition curve with the main curve
• C. gradual change of gradient from zero at the tangent point to a specified amount at the junction of the transition curve with the main curve
• D. gradual change of gradient from 1 in 6 at the tangent point to a specified amount at the junction of the transition curve with the main curve

Hint:

Transition curves gradually raise super elevation at curve entry points.

Answer 1

The Correct Option is B

Transition curves help achieve a gradual increase of super elevation as a vehicle enters a circular curve, ensuring smooth entry and reducing discomfort and centrifugal effects.