As is the case in several European countries, Belgium is also constructing more and more roundabouts at busy intersections. They offer a better guarantee of a fluent, but at the same time safer, flow of traffic. The road surface of a roundabout is placed under a heavy load. In addition to horizontal forces, the inclining vehicles also exert large vertical forces which affect the edge of the paving in particular. To prevent the road surface from distorting through these heavy loads and to prevent the top layer from shifting as the result of horizontal forces, it is recommended to construct the road surface from concrete, concrete slabs and, if possible, continuously reinforced concrete.
