Enhanced road functionality with porous asphalt on the Ben Schoeman Highway

Abstract

The degree to which a road is capable of accommodating traffic is dependent on functionality and economics. The higher the traffic the greater the challenge. Porous asphalt is currently one of the best alternatives to meet functionality requirements of highly trafficked urban roads. Porous asphalt offers definitive advantages in wet weather in respect of minimization of backsplash, better overall visibility, retention of skid resistance and road noise reduction. A need for porous asphalt surface courses exists in South Africa and specifically in the PWV area of the Transvaal.