Ugh. First off they're called traffic circles. Roundabout is what Nascar does.Roundabouts Have you driven up 14 lately? Even got one at the Carson turn off.
We got a new one up near Cooper Mountain. There's a yield sign at every entrance but nobody slows down going into it, they don't care if there's traffic already in it. Then nobody signals their egress from it. It's the little things man, the little things! Traffic circle etiquette, yield and use ya blinkah!