I find that roundabouts are a good alternative to regular intersections. Makes the traffic way more fluid, altough in the city the major ones still need traffic lights.
Recently in Lisbon, on the biggest roudabout they made it a double roundabout, i.e. a roundabout inside a roundabout
Recently in Lisbon, on the biggest roudabout they made it a double roundabout, i.e. a roundabout inside a roundabout
