<P> In the Netherlands, A6 motorway and A7 motorway cross near Joure using a roundabout . The junction between the A200 and the A9 uses a 3 - level stacked roundabout . Near Eindhoven (the Leenderheide junction), the junction for the A2 uses a roundabout . An overpass was built for the A67 from Antwerp to Germany . </P> <P> Rotary interchanges operate with traffic circles rather than roundabouts . Rotary interchanges are common in New England, particularly in the state of Massachusetts, but a European example of a rotary interchange may be found in Hinwil, Switzerland . </P> <P> Some bridges on Beijing's Second Ring Road are controlled by traffic lights . While it may appear to defy the logic of roundabouts, it works well to control traffic flow on bridges, which are two viaducts creating a roundabout suspended over the ring road . </P> <P> Signal controlled roundabouts are common in the United Kingdom, Ireland and Spain (mostly the city of Valencia), where they have been introduced in an attempt to alleviate traffic problems at over-capacity roundabout junctions or to prevent some flows of traffic dominating others (around the M50 in Dublin for example). The Cherry Street roundabout in Kowloon, Hong Kong is also one such example . </P>

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