We have two traffic circles here, put in about 15 or so years ago. The city said it was cheaper than a computerized traffic light system at those intersections.................
Might be cheaper for the city/county. I doubt it’s cheaper for the auto insurers, though. ;-)
I don’t have a big problem with traffic circles myself, but today’s distracted airhead behind the wheel has enough trouble just getting the vehicle down a straight stretch of road without putting a stumbling block in the form of a traffic circle in front of them.