In the context of un-channelised intersections, a "Flared intersection" refers to a type where the pavement is widened at the intersection area by adding a traffic lane or more. This design helps to accommodate additional traffic volume and improve traffic flow by providing extra space for vehicles to maneuver. Flared intersections are particularly useful in managing congestion and enhancing safety at busy intersections, as they offer more room for turning movements and reduce the likelihood of traffic bottlenecks.