D4RUNOFF NBS Library: https://d4runoff.eu/resources/
Permeable pavements are nature-based infrastructures which increases percolation of rain and surface water through a paved surface. They infiltrate, treat, and store rainwater and reduce runoff by allowing rain and snowmelt to seep to underlying layers. They generally consist of a surface pavement layer, an underlying reservoir layer, and may include a filter layer or fabric installed at the bottom, all of them above a well compacted soil. These types of pavements are normally used for pedestrian ways and sidewalks, parking lots or in streets or roads with light traffic.