Option

Description

WITHOUT Adverse Crown Removal

Superelevation of both left and right-hand side carriageways will start developing as soon as the road leaves the crested road (normal camber condition). Both carriageways will develop individually towards the maximum superelevation.

WITH Adverse Crown Removal

When superelevation development starts by leaving a crested road (normal camber condition), the outside carriageway will start developing to a positive crossfall equal to the crossfall of the inside carriageway. During this period the inside carriageway will not change. The superelevation will then be at a normal camber condition at distance 2 x Lc from the end of the crested road. From here both carriageways will proceed towards the maximum superelevation. The same process will be followed when leading out of the curve.