Pivot at Outside of Curve - Maintain Central Reserve Shape (Superelevation on Dual Planar Roads)

The following illustration describes the Outside of Curve pivot method for a dual planar carriageway.

Maintain Central Reserve Shape means when superelevation is applied, the central reserve will raise to accommodate the superelevation. This option maintains the central reserve shape, and the pivot points raise or lower.

For an explanation of superelevation diagrams, see About Superelevation Axis of Rotation Pivot Methods.