Between Bucharest and Giurgiu, for the most part, it is a non-grade separated dual carriageway with no emergency lane, with entrances and exits from adjacent roads using roundabouts.

The bowtie is an alternative to the Michigan left format that uses roundabouts on the cross street.

The interchange is based on the traditional diamond layout but uses roundabouts instead of signalized intersections at the ramps for increased safety and capacity.

Most intersections in Ireland use circular "roundabouts" instead of signals, and it is important that motorists pay close attention to signs and yield the right of way to those already in the roundabout.

By using roundabouts, Westfield is one of the few municipalities with no stop lights.

For each route, the applicants must recite the names of the roads used, when they cross junctions, use roundabouts, make turns, and what is 'alongside' them at each point.

Be particularly careful when using roundabouts: on some you have the right of way when on them but on others right of way must be given to vehicles entering.

This is the first site in the state linked to a major highway to use roundabouts.