Roundabout: the solution to gas crisis?

According to this article on Time, driving in circles is the new way to fight traffic.

Really.

They are talking about roundabouts, a giant circular road intersection that may be an effective way to easy traffic problems in may urban areas. It's very popular in Europe, but Americans have rarely seen them here.

Unfortunately, I don't believe I will see any new roundabout soon here.
Why? Because they can't use red light cameras, which is the cash cow for all municipalities.

The world's largest roundabout.