A super 2 highway is a two-lane rural highway in which a periodic passing lane has been added to allow faster vehicles to pass. The passing lane typically alternates from one direction of travel to the other within a section of roadway, which allows periodic passing opportunities in both directions in a safe manner. The transitions at the beginning and end of the passing lane allow sufficient room for the diverging and merging traffic.

Super 2 highway illustration

Illustration: Super 2 Highway

Super 2 highway photo

Photograph: Super 2 Highway

A. Super 2 periodic passing lane to allow vehicles to safely pass slower vehicles.

B. Super 2 arrow pavement marking of lane reduction indicating to drivers that the passing lane section is coming to an end.