Recently, Mythbusters took on the question of what is really more efficient: the American four-way stop or the European roundabout. No one should really be surprised by the results.
Clip From Mythbusters Season 12 Episode 12 Traffic Tricks
Only Aired In Australia On SBS One, August 3, 2013 below:
http://www.rots.com/video/9428/mythbusters-test-a-fourway-stop-vs-a-roundabout
