Design and experimentation of Permeable Pavement Systems at Western Sydney University

![CDATA[This paper presents designing and experimenting a pilot-scale Permeable Pavement Systems (PPSs) at Western Sydney University. Six PPSs columns with different subbase configurations were studied to evaluate the effect of different aggregate materials and subbase layer settings on water treatment performance of PPSs. A series of experiments were carried out using synthetic stormwater having different pollutant concentrations while maintaining varying rainfall intensities to simulate realistic rainfall-runoff conditions. These experiments were performed in controlled environments enabling to measure the effects of adding bark chips, saturated zone and thin sand layers in the subbase on the treatment of nutrients and heaving metals in the runoff. Synthetic stormwater utilised in the experiment enabled running duplicates and maintaining different pollutant concentrations to simulate typical runoff conditions. Stormwater treatment performances were tested for three different average rainfall intensities (20 mm/4hr, 40 mm/4hr and 120 mm/4hr). Experimental results support in establishing cause and effect relationships while allowing modifications to the PPS structure for its application in a wider urban environment as a component of sustainable urban planning.]]