Roundabouts

It seems that “roundabouts” are much more common in Europe than in the U.S. I’m not sure why they haven’t caught on more in the U.S., as they seem to be a fairly efficient way to manage traffic at an intersection.

Perhaps it’s analogous to the metric system’s inability to gain traction in the U.S. -- regardless of how logical an alternative solution is, we Yanks just like things the way they are thank you very much...