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Mythbusters tests which is more efficient, four-way stop or roundabout [w/poll]

In the US, the four-way-stop intersection is king, with little competition from roundabouts. In Europe, things are reversed, and the roundabout is much more common than four-way-stop intersections. While it has been said before that the roundabout is a more efficient way to handle traffic at a busy intersection, Mythbusters aims to find out the truth.

Report: Roundabouts proliferating in America, drivers confused

Roundabouts are the scourge of many a motorist and a favorite calming device of traffic engineers, and they're spreading like crazy across the United States roadscape. As anyone who's had the joy of driving in Massachusetts or New Jersey will tell you, plenty of drivers have absolutely no idea when to yield or how to successfully navigate these rings of macadam.