As a systems guy I love roundabouts. They make it so much easier to get across intersections and they completely eliminate the variable cost of left hand (right hand if you&#x27;re British) turns. That is because traversing them and exiting simply a linear function of traffic and not based on whether or not there is a special light for cross traffic turns which may or may not be timed appropriately. Thus it is always the &quot;fastest&quot; way to get from point A to point B by travelling along the highest flow routes.<p>That differs in the US where travelling a slower, but less controlled side street can be faster than using boulevards with left turn lights.