Experimental characterization and two-dimensional hydraulic-hydrologic modelling of the infiltration process through permeable pavements

Permeable pavements are a common solution for wearing course layers in roads and urban areas. They composed by highly porous materials with permeability several orders of magnitude above the natural terrain. This work presents, on one hand, experimental characterisation hydraulic behaviour permeable asphalt concrete layer and, other development validation two-dimensional coupled hydraulic-hydrological distributed numerical model to reproduce effect infiltration rainfall-runoff transformation overland flow propagation processes. Experiments show linear potential trends permeability-hydraulic head relations when considering constant variable heads, respectively, reaching up 0.04 m/s 1 m head. reproduced numerically incorporating new formulas, which consider rate as function head, specific scheme properly dealing mass conservation negative values water depth may occur due high rates. is validated tool simulating not only process, but also propagation.