A type of intersection control with specific design and traffic control features, such as yield control of all entering traffic, channelized approaches, and appropriate geometric curvature to ensure slow travel speeds on the circulatory roadway.
a circular intersection in which vehicles entering the intersection yield to vehicles already in the intersection, thus, in theory, preventing traffic from locking up and allowing free flow of movement
A playground roundabout (or merry-go-round) is a flat disk about 3 metres in diameter that can be made to spin by pushing on its handles. The children who spin it can jump on, and experience a dizzying ride. "Roundabout" is also often a synonym for carousel.
marked by obliqueness or indirection in speech or conduct; "the explanation was circuitous and puzzling"; "a roundabout paragraph"; "hear in a roundabout way that her ex-husband was marrying her best friend"