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
Roundabout intersections are called "rotaries" and the state enforces that restriction. The term "traffic circle" is not used in the United Kingdom, where most circular junctions meet the technical criteria for "modern roundabouts". However, in some parts of the English Midlands, such as in Birmingham, roundabouts are commonly called "islands", which conflicts with the more generic use of the term "island" as a structure to divide traffic flow, and can cause confusion. In the Channel Islands a third type of roundabout, known as "Filter in Turn", exists. Here approaching drivers neither yield to traffic on the roundabout, as normal, nor have