The drainage design of urban highway deals with only the surface run-off. It presents a new drainage system considering the road surface, pavement structure, and subgrade (including green belt).

城市快速路排水设计，一般只考虑路面径流的做法，主要从道路表面、路面结构内部和路基(包括绿化带)三方面时排水进行综合介绍。

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Removal of surface water from the road or street is known as surface drainage.

从道路或街道排除表面水被称为地表排水。

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Construction process, drainage of asphalt concrete road surface and the corresponding drainage in the urban road are introduced, engineering example is given.

文章介绍了对排水性沥青混凝土路面、相应道路排水在城市道路中的施工工艺，给出了工程实例。

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An estimated 100-150 tons of debris was spread across the road and torrential rainfall blocked the drainage system, causing severe flooding on the road surface.

BBC: Scotland