They are called "roundabouts".
There would be traffic circles everywhere! I believe traffic would actually move a little faster during rush our with this. The east coast is full of traffic circles.
In America, roundabouts are often referred to simply as "roundabouts," although they are also commonly known as "traffic circles" or "rotaries" in some regions. However, there are distinctions between modern roundabouts and older traffic circles, with modern roundabouts designed for safer, slower traffic flow. The terminology can vary by state and local preference.
In the US, we call them "Traffic Circles".
Circles - 1998 is rated/received certificates of: UK:15
Close - they're called concentric circles.
It depends on the country. In the UK, we drive on the left. So, at a roundabout, we are expected to give way to vehicles entering the roundabout from our right. At a roundabout, we drive clockwise round it. In the UK, traffic circles are known as mini-roundabouts. Mini-roundabout are often used at a junction where a physical roundabout would prevent large vehicles from turning. Though vehicle can cross over a mini-roundabout, they are expected to still keep clockwise is they can.
It depends on the country. In the UK, we drive on the left. So, at a roundabout, we are expected to give way to vehicles entering the roundabout from our right. At a roundabout, we drive clockwise round it. In the UK, traffic circles are known as mini-roundabouts. Mini-roundabout are often used at a junction where a physical roundabout would prevent large vehicles from turning. Though vehicle can cross over a mini-roundabout, they are expected to still keep clockwise is they can.
Studies have shown that traffic circles can be safer than traditional intersections because they reduce the number of potential conflict points and lower the severity of collisions.
concentric circles
Concentric circles.
There are other round circles of standing stones in the UK but there is only one called "Stonehenge" near Amesbury, Wiltshire
The Civil Aviation Authority UK & National Air Traffic Services UK