The modern roundabout relies on a geometric design that forces traffic to slow, plus a simple innovation born in 1960s Britain: the rule that people already in the circle get the right of way.

Cyclists. Use the bike lane as you approach the roundabout. When it ends, merge with traffic. You are following the same rules as a car, so be confident and take the middle of the lane.

Misconceptions about roundabouts - circular intersections that are cropping up all over Georgia -- abound with regard to everything from how they work, to how safe they are, to what they cost.

"Roundabouts are really quite simple once you get used to them," said Farid Javandel, Berkeley's transportation manager. "With a roundabout, you only have to look in one direction.

Placer County is considering building roundabouts at three Granite Bay intersections near Folsom Lake and a high school. A traffic subcommittee of the Granite Bay Municipal Advisory Council ...

Roundabout etiquette issues -- such as signaling when you're turning out of one -- is a common discussion/debate topic on places like Reddit's Bend subreddit and other online and in-person ...