Where I moved from, we had one area in the city where roundabouts were installed. There were two lanes of traffic merging into and exiting single lane roundabouts. Contrary to what some may think, during rush hours, the traffic moved smoothly through these roundabouts. Was there some back up of cars at the entrance to the roundabout? Yes. But much less than if you had a stop sign or a light at these intersections. I, too, was surprised that the two lanes to one lane would not have caused a lot more congestion, but it didn't. I wish the authorities would try one at the northern side of TV and see how it works. I think people would be pleasantly surprised. And it would be much less chaotic.
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