MythBusters: Roundabout vs. 4-way stop intersection, which is more efficient? (video)

Mythbusters roundabouts
Screen capture Youtube

For those still doubting the power of the roundabout

The MythBusters decided to test the 'myth' that European-style roundabouts were more efficient - allowing a higher throughput - than the 4-way stop intersection that dominates in North-America. Here's the test segment:

Other benefits of roundabouts

Please note that what they are testing for is the number of cars that can cross the intersection in a certain period of time. That one thing, but there are others; for example, roundabouts also have fuel-efficiency benefits because you often don't have to completely stop the vehicle, losing momentum and making the engine work harder to re-accelerate. They've also been shown to be safer (including for pedestrians).

I can say that, from personal experience, that seems true. I don't live in Europe, so there aren't that many roundabouts around, but my city built three of them close to where I live and, after people got used to them, they seem to be much faster and safer (except when a driver who's not familiar with the concept goes through for the first time).

Via NextSTL, Planetizen

See also: "I'm living proof the Model S is the safest car ever made!"

Tags: Energy Efficiency | Transportation