Excel Sheet — Superelevation Calculation

The transition from a flat road to a banked curve occurs over two distances: Tangent Runout Superelevation Runoff Superelevation Runoff ( cap L sub r The length needed to rotate the outer lane from a slope to the full design superelevation ( = Lane width. = Number of lanes rotated. = Adjustment factor for number of lanes. = Maximum relative gradient. Tangent Runout ( cap L sub t

This provides the designer with the data needed for construction drawings. superelevation calculation excel sheet

= (B2^2) / (127 * C2) - E2

Imagine a NASCAR track; the track is steeply banked on the turns. Public highways use the same principle, though at much gentler slopes. The goal is to balance the centrifugal force with the weight of the vehicle and the friction between the tires and the road. The transition from a flat road to a