In general, there is a lack of full-scale, outdoor, real-world porous pavement studies with system replicates.
More studies of porous pavement operating in its intended use (parking lot, roadway, etc.) with climatic events, regular use, and maintenance effects, are necessary.
The Urban Watershed Management Branch has installed a full-scale 110-space porous pavement parking lot that is instrumented and monitored for a number of water quantity and quality parameters.
Monitoring will be conducted on side-by-side porous asphalt, porous concrete, and permeable interlocking concrete paver systems.