Porous pavements such as pervious concrete and pervious asphalt are better suited for urbanized areas that see more frequent vehicular traffic, while concrete pavers, grids, and geocells are better suited for light vehicular traffic, pedestrian and cycling pathways, and overflow parking lots.
Permeable solutions can be based on porous asphalt and concrete surfaces, concrete pavers (permeable interlocking concrete paving systems – PICP), or polymer-based grass pavers, grids and geocells. 4.10 Bound recycled glass porous pavement.4.6 Permeable interlocking concrete pavements.Permeable pavement is commonly used on roads, paths and parking lots subject to light vehicular traffic, such as cycle-paths, service or emergency access lanes, road and airport shoulders, and residential sidewalks and driveways. In addition to reducing surface runoff, permeable paving systems can trap suspended solids, thereby filtering pollutants from stormwater. Unlike traditional impervious paving materials such as concrete and asphalt, permeable paving systems allow stormwater to percolate and infiltrate through the pavement and into the aggregate layers and/or soil below. Permeable pavement surfaces may be composed of pervious concrete, porous asphalt, paving stones, or interlocking pavers. Permeable paving can also include a variety of surfacing techniques for roads, parking lots, and pedestrian walkways. Permeable paving surfaces are made of either a porous material that enables stormwater to flow through it or nonporous blocks spaced so that water can flow between the gaps.