The drainage design of urban highway deals with only the surface run-off. It presents a new drainage system considering the roadsurface, pavement structure, and subgrade (including green belt).
Removal of surface water from the road or street is known as surfacedrainage.
从道路或街道排除表面水被称为地表排水。
3
Construction process, drainage of asphalt concrete roadsurface and the corresponding drainage in the urban road are introduced, engineering example is given.