Modern Roundabouts: A Challenge of the Future

Throughout the world, research into the various aspects and types of roundabouts has spanned many decades. During this long period the number of vehicles, their sizes, and performance characteristics, including speeds, have radically changed. Similar changes are also noted for the drivers’ experiences. Tese changes have had a strong influence on the evolution of modern roundabouts. Te primary aspects of the layout of modern roundabouts in relation to capacity and traffic safety is now known.