About "Water and roads"

Areas of Expertise (1)


Road infrastructure should enable rainwater to be evacuated as soon as possible, so as to minimize disruption to traffic. This can be done in several ways: local infiltration, water-permeable road structure, or drainage by channels and gullies.

Today we are faced with climate change, resulting in irregular occurrence of extreme local peaks of precipitation.

Water drainage practice has changed drastically in recent times. Rainwater often combined with waste water used to be carried off as rapidly as possible to a discharge point (open water, watercourse). Nowadays waste water is separated from rainwater and conveyed to a treatment plant, from which it can be discharged into open water or a watercourse.

High building densities have historically resulted in the creation of vast paved surfaces. Surface water from many of these runs off to roads. As a result, their rainwater drainage systems have to accommodate more than just the water that runs off from the road itself. To minimize flooding, especially in reputed problem areas, road designs have to provide for local infiltration, delayed drainage and temporary subsurface storage where possible.

The challenge today is to implement innovative applications with a view to ensuring road safety for our children in future. BRRC addresses needs as they arise, thereby supporting the sector in its efforts for sustainable and high-quality sewer construction - often integrated with road (re)construction projects. Inspections during construction are necessary to achieve targeted quality and performance. Our specialized staff is involved in technological developments, research and knowledge transfer aiming and constant improvements in quality. We provide the necessary training programmes for this transfer.

Our technical committee TC5b deals with the questions and needs of the branch, which may result in research to be undertaken by BRRC. The membership of this committee is representative of the sector.