Howdy Folks,
We arrived in Vail, Colorado yesterday afternoon and seems a good bit of the traffic is routed and regulated using signage and traffic circles. We drove around the nearby area to Avon and Edwards and I think we went through more roundabouts than I saw in Great Britain in the early 90s. These ski areas tout their "PC" version of going Green and I guess eliminating some of the traffic lights is one way to go.
Just my observations.