not really, being from the US and now living in the UK, the "traffic circles" I've gone round in the US were really just circular roads with one lane of traffic

not really, being from the US and now living in the UK, the "traffic circles" I've gone round in the US were really just circular roads with one lane of traffic and easy to get stuck on if it's busy and you stray too far to the center. Quite different from UK roundabouts. Not saying all US traffic circles are like that of course.