A high steep camber is NOT desirable to:

Explanation:

• A high steep camber (a convex road surface curvature) is primarily designed to ensure effective drainage by quickly removing rainwater from the pavement surface and preventing water from entering the subgrade soil or the bituminous pavement layers.
• However, too steep of a camber can lead to instability and unsafe driving conditions, such as transverse tilt and skidding of vehicles.

Additional Information

1. Prevent the entry of surface water into subgrade soil: High camber helps prevent water from infiltrating into the subgrade, thus protecting the road structure from weakening and potential damage.
2. Remove rainwater from pavement surface: Camber is effective in facilitating the quick removal of rainwater from the pavement, which helps maintain safe driving conditions and prevents waterlogging.
3. Prevent entry of water into bituminous pavement layers: By ensuring proper drainage, camber also prevents water from seeping into the bituminous layers, which can cause stripping and deterioration of the pavement.