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A roundabout is a type of one way, circular intersection that directs motorists to travel counter clockwise around a central island.


  • slows traffic
  • provides for continuous movement of traffic
  • decreases traffic delays and congestion
  • provides a safer intersection as the design allows no opportunity for right-angle or head-on collisions
  • reduces braking, idling, engine noise, air pollution, and fuel consumption
  • lower operation and maintenance costs compared to fully signalized intersection