Roundabouts Are Safer. So Why Does The U.S. Have So Few Of Them? - CNBC

[viva la]

30. In rural areas.

See any on Oxford Street in London? (The one around Marble Arch, I guess, and Hyde Park itself is sort of a big roundabout.)
Regent's Street? Maybe at the big intersections, but there are still traffic lights.

What to do about pedestrians?

In the UK, often there's still a traffic light at the entry of the big roundabouts, those ones with three-four lanes. Those really are complicated for this intellectually challenged Yanks, because it's very hard to go from one lane to another to get to an exit.

Fortunately, while the UK can be really bad about signage (you know, like having the road exit marked with some minor village 2 k away rather than something useful like West or the next big town), they often do a good job with roundabouts, with the lane itself painted with where this should exit-- "Abington, B2212"-- so before they get into the circle, they're in the right lane to get out.

I like painting the lane itself with the direction and the road number AND the nearest biggish town.

European countries do have to expect a lot of tourists from somewhere else, and that sort of double-check signage sure helps.