Porous Pavements are increasingly in demand as tools for managing storm water in an environmentally friendly way. They are an alternative to costly, bulky and land-intensive detention or retention ponds
In addition to the obvious environmental and land use benefits, installation of porous pavements can qualify for significant LEED® (Leadership in Energy and Environmental Design) points under the Green Building Rating System, developed by the United States Green Building Council (USGBC).
This document is intended to offer guidance to the designer who is interested in the storage capacity potential of the underlying aggregate layers.
Going Green (PDF)