Roundabouts
Good traffic flow is important for several reasons. Accelerating and decelerating traffic leads to extra CO₂ emissions. In addition, a good traffic flow promotes road safety and therefore also the quality of life.
Good traffic flow is important for several reasons. Accelerating and decelerating traffic leads to extra CO₂ emissions. In addition, a good traffic flow promotes road safety and therefore also the quality of life.
USE AND APPROACH
Roundabouts are used intensively and due to the increasing freight traffic and the associated axle loads, the load on the road surface is very high. Moreover, on a roundabout there is 'squeezing' traffic. The choice to use concrete on roundabouts is an obvious one, as it can withstand heavy loads. Maintenance work is minimal, which increases the roundabout's availability to traffic.
Roundabouts are realized in various forms in the Netherlands, for example single lane, mini roundabouts, roundabouts that can be driven over and turbo roundabouts. All types are available in concrete, regardless of the dimensions. This applies not only to the road surface, but also to roundabout tires or blocks, drainage gutters, (rattle) strips that can be driven over and the connecting roads.
There are generally three types of constructions at roundabouts:
unreinforced concrete; this construction is recommended for light traffic loads
unreinforced concrete with dented joints; recommended for roundabouts with a lot of light traffic, for example in heavy urban traffic
(continuous) reinforced concrete; for (very) heavy traffic loads, for example when opening up business parks
