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xkcd #2842: Inspiraling Roundabout
(imgs.xkcd.com)
Alt text:
Look, I just think we need to stop coddling those hedonistic roundabout hogs who get into the inner lane and circle for hours, wasting valuable capacity.
I'm american and work right next to a roundabout. It gets a pretty low amount of traffic but I still see people stop in the middle or go around backwards all the time.
That said, I see drivers doing the stupidest things pretty much everywhere, so the roundabout isn't exactly making things worse.