Originally Posted by
unterhausen
a roundabout beats a 4-way stop any time.
Yes, but only if drivers know the rules of the road and entering traffic yields to traffic in the circle.
There's a large (50' dia. fountain in the middle( roundabout with divided and curbed approaches here it Mount Vernon, NY. It isn't rare to see cars cut off buses as they race to beat them into the circle. And as for cars yielding to bicycles, in your dreams.