According to studies, traffic roundabouts reduce pollution, commute times, and even car accidents. But unless you’re a seasoned driver, they can be scary to navigate. Even the bravest motorist might be intimidated by one particularly notorious intersection in Swindon, England. There, planners tucked five mini traffic circles inside a larger loop—effectively creating seven roundabouts in one. 

WIRED created a quick video that explains how, exactly, Swindon’s roundabout works—and why it’s less chaotic (and more efficient) than it looks. 

[h/t The Kid Should See This]

Banner image courtesy of YouTube.