The Magic Roundabout again on an LP "Pollux" in 1983 along with an original single "C'est moi Pollux". In the United Kingdom, the "Magic Roundabout" name has been given to the ring junction – a large road traffic circulation system with unconventional layouts – in Swindon and in Hemel Hempstead for example. The popularity of the TV show coincided with the introduction of such schemes and soon became associated with any complex traffic roundabout. Although the Swindon roundabout's original name was not the Magic Roundabout, it was almost always referred to as such by Swindon residents and in the late eighties, it was
Roundabout Devices. Roundabouts are generally not appropriate for placement on motorway or freeway mainlines because the purpose of such facilities is to provide for uninterrupted traffic flow. However, roundabouts are often used for the junction between the slip roads (ramps in North America) and the intersecting road. A single roundabout, grade separated from the mainlines, may be used to create a roundabout interchange. This type of junction is common in the UK and Ireland. Alternatively, separate roundabouts also may be used at the slip road intersections of a diamond interchange to create what often is referred to as a "dumbbell interchange",