A free version is available here. For roundabouts to work, drivers must be observant and courteous. Concern is such that traffic engineers here have planned a special education campaign. We don't merge very well. And these roundabouts are a cooperative venture.
People have to get along.
Small modern traffic roundabouts are different than the giant traffic circles found in old European cities and have gained popularity in recent years, particularly in the United States. They are safer, cheaper, more attractive, better for the environment and easier to maintain than signal intersections, according to Stout and Jim Sawhill, the vice-president of Lounsbury. About 40 roundabouts now exist in the United States, Stout said. Shaped like two teardrops connected at the narrow ends, the roundabouts are designed to manage a continuous flow of traffic without stoplights. Drivers will approach the circle slowly, look to their left and wait for a gap in traffic, then make a right turn into the traffic flow.