While deriving the formulae for the length of valley curve, it is assumed that the head light is

Related MCQs

• The minimum length of a valley curve should be such that the head light beam sight distance is equal to the
• A curve at the valley between two hills having a concave shape is called a valley curve.
• When the valley curves are designed as square parabola, the stopping sight distance should be equal to head-light beam distance.
• According to IRC, the minimum length of the summit or valley curve should not be less than
• A circular curve may be a vertical curve.
• The inward tilt given to the cross-section of the road surface, throughout the length of the horizontal curve, is known as
• The length of the tangent of a simple curve having angle of deflection ? and radius of curvature R, is equal to
• Valley curves are required to be introduced at the situations where
• The design criterion for the valley curves is the centrifugal force developed.
• Design of both summit and valley curves is based on the assumption that the