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The Modern Roundabout

The modern roundabout is a circular intersection with specific design and traffic control features that separate it from other forms of circular intersections. The modern roundabout is characterized by yield controlled entry points and channelized approaches. With the purpose of maintaining traffic flow, the circulatory roadway geometry ensures travel speeds are 50 km/h (30 mph) or lower (typically) and deflection angles that provide greater safety for motorists, cyclists, and pedestrians.