Quote:
Originally Posted by Polar Bear
The delays would come about because you would in effect be changing all approaching roads to one lane...two lanes of traffic can't enter a one lane roundabout nearly as efficiently. Merging would be forced...at higher volumes this is a disaster. The capacity of the overall system would be damatically reduced. At very low traffic volumes, maybe not much of a problem. At higher traffic volumes comes the disaster.
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Good point! I was only thinking of the traffic within the circle.