Pervious Pavement
Most of the 'paving over' in developed areas is due to common roads and parking lots, which play a major role in transporting increased stormwater runoff and contaminant loads to receiving waters.
Alternative paving materials can be used to locally infiltrate rainwater and reduce the runoff leaving a site. This can help decrease downstream flooding, the frequency of combined sewer overflow (CSO) events, and the thermal pollution of sensitive waters. Use of these materials can also eliminate the problem with standing water, provide for a more aesthetically pleasing site.
The effective imperviousness of any given project is reduced while land use is maximized. Alternative pavers can even eliminate the requirement underground sewer pipes and conventional stormwater retention/detention systems.
The drainage paved areas and trafic surfaces by scheme that seeks to achieve a stormwater management system close to natural conditions.