The magic roundabout in Swindon, England was constructed in 1972. It consists of five clockwise mini roundabouts arranged around an anticlockwise roundabout. In 2009 it was voted the fourth scariest junction in Britain. Before this roundabout was constructed, the area had been a motorist's nightmare which routinely failed to handle the volume of traffic which converged on it from five directions. The new roundabout was the work of the Road Research Laboratory (RRL) and their solution was brilliantly simple. All they did was combine two roundabouts in one - the first the conventional, clockwise variety and the second, which revolved inside the first, sending traffic anti-clockwise. Though it may confuse or amuse new visitors, the average English finds that his or her passage through one of the town's busiest junctions is actually quite fluid, even at peak times.
Twenty-five years on, the Magic Roundabout still works, despite ever-increasing volumes of traffic.
Though there have been 14 serious accidents and just over a hundred lesser ones recorded in 25 years, that rate is less than one would expect for such a busy junction. Most accidents have involved cyclists and motorcyclists and now a cycle lane running right round the outside of the roundabout, with pedestrian crossings, should ensure that the Magic Roundabout becomes as safe as it is efficient. Even though it is proven to be safe and efficient, do you think that this could ever be introduced in the United States for complex intersections?











