It is best to select a pervious paving material that can use the most porous subbase. Care should be taken during installation to minimize excessive soil compaction. A turf covered pervious surface can be problematic for certain types of footwear, and can stay wetter after rains due to the height of the grass. A compromise approach is to retain a small impervious walkway to accommodate the areas that provide access to vehicle loading and unloading. If used in areas with underground utilities needing repair, pervious paving materials can easily be removed from only the repair area.
Pavement replacement is simplified and expensive measures such as asphalt cutting are eliminated.
Commercial Status Implementation Issues Sustainable Sources 1994-2000. Several systems are presented in Sweets catalogue and can be accessed locally. The driveway approach is regulated by the Department of Public Works and Transportation. The area from the street to the property line must be concrete. Contact the Department of Public Works and Transportation to discuss possible alternatives.