Assessing the Potential For Rehabilitation of Surface Permeability Using Regenerative Air and Vacuum Sweeping Trucks

Permeable pavements (PPs) have been used as stormwater management sys-tems throughout Ontario for over twenty years. After years of sediment and debris buildup, surface clogging reduces the infiltration of stormwater and inhibits the hydraulic and environmental functions of the pavement. Removal of surface material has been shown to restore infiltration but the majority of studies have been limited to small scale testing. This chapter presents the results and experiences of the first testing of regenerative air and vacuum sweeping trucks on permeable pavements in On-tario, which was conducted in 2011. A regenerative air truck was tested on two parking lots with well used permeable interlocking concrete pavers and per-vious concrete, while a vacuum sweeping truck was demonstrated on a third parking lot with permeable interlocking pavers. Both systems proved to provide partial rehabilitation of the permeable pavements. Post treatment surface infiltration rates on all three parking lots displayed large spatial variability, showing that micro-conditions throughou