Magic Roundabout (Hemel Hempstead) a New Town the roads met in a simple junction which was then replaced by a standard roundabout. Constructed in 1973, the "Magic Roundabout" in Hemel Hempstead was voted the UK's second-worst roundabout in a 2005 poll held by an insurance company (the winner being its Swindon counterpart). In 2011 the roundabout was voted the best in Britain by motorists in a competition organised by a car leasing service. The original magic roundabout had six exits in total, with the British Petroleum building spanning "Marlowes", the road leading to the town centre, in the approximate position of the earlier railway
Road transport in Peterborough to a roundabout for local traffic. The road then becomes a major dual carriageway, although it has only one grade separated junction (with the A47), with the other junctions being roundabouts. In 2008, Peterborough City Council funded the dualling of the northernmost stretch of the Paston Parkway between two roundabouts east of Gunthorpe. This has significantly reduced congestion, as the route is used as a commuter run between the city's Eastern Industry development in Fengate and settlements north of the city. The A15 moves southward as a minor dual carriageway from its junction with the A47 with several more roundabouts