Don't know if you all watch 'Mythbusters' or not, but it's a terrific and entertaining TV show that takes commonly-held beliefs and puts them to the scientific test.
They decided to see if roundabouts really were more efficient than four-way stops.
You can watch the episode here.
But - SPOILER ALERT!!! - you must know that I of all people would hardly include it in my blog if the roundabouts didn't win...
In this instance, they were measuring 'efficiency' only from a traffic-flow perspective - how many cars get through an intersection in a given time period.
They did not factor in safety - you have to work pretty hard to get into a Tee-bone or head-on crash in a roundabout, and Waterloo Region has recorded as many as 70 percent fewer collisions in roundabout intersections compared to stop signs; or fuel efficiency - stopping, idling and re-starting are the three of the worst things your car can do to waste fuel, and they're all part and parcel of a stop sign.
Roundabouts are s-l-o-w-l-y making their way into the consciousness of traffic planners in some North American municipalities.
Yes, there is a bit of a learning curve for drivers unfamiliar with the concept.
But if ROW (Rest Of World) can figure them out, surely we can too.
My question, as it has been since my first visit to Europe many years ago: What's it going to take to make it the 'default option' for ALL intersections here?
Science has spoken.