Magic Roundabout (Swindon) Magic Roundabout (Swindon) The Magic Roundabout in Swindon, England, was constructed in 1972 and is a ring junction consisting of five mini-roundabouts arranged around a sixth central, anticlockwise roundabout. Located near the County Ground, home of Swindon Town F.C., its name comes from the popular children's television series "The Magic Roundabout". In 2009 it was voted the fourth scariest junction in Britain. The roundabout was constructed according to the design of Frank Blackmore, of the British Transport and Road Research Laboratory. Traffic flow around the larger, inner roundabout is counterclockwise, and traffic flows in the usual clockwise manner around the
Roundabout islands is 28 metre diameter ICD with a 4-metre diameter island. This threshold being driven primarily by vehicle geometry – which is globally relatively consistent – rather than driver behaviour, it is adopted in other jurisdictions too. Below this minimum size, the mini-roundabout prevails. After developing the offside priority rule, Frank Blackmore, of the UK's Transport Research Laboratory, turned his attention to the possibility of a roundabout that could be built at sites lacking room for a conventional roundabout. Mini-roundabouts can be a painted circle or a low dome but must be fully traversable by vehicles. Motorists can drive over