Assessment of the Feasibility of Permeable Pavement for Sustainable Stormwater Management Using SWMM

• Main Authors: Castro, Al Patrick C., Castillo, Ma. Aleissa Janelle M., Timario, Carmela Rose V., Go, David Timothy F., Maniquiz-Redillas, Marla C.
• Format: text
• Published: Animo Repository 2023
• Subjects: LID; permeable pavement; stormwater; SWMM; water balance; Engineering
• Online Access: https://animorepository.dlsu.edu.ph/sinaya/vol2/iss1/5; https://animorepository.dlsu.edu.ph/context/sinaya/article/1057/viewcontent/5_Science_and_Technology_Manuscript__5_Assessment_of_the_Feasibility.pdf
• Institution: De La Salle University

The advancement of urbanization in the Philippines changed natural lands into impervious surfaces and aided the contamination of surface runoff and nearby water bodies. Low Impact Development (LID) technologies were introduced as an alternative to conventional drainage systems, specifically permeable pavements. Such technology is beneficial for stormwater runoff reduction, ground infiltration enablement, and stormwater treatment. This research was conducted to investigate the feasibility of permeable pavement for sustainable stormwater management in a university setting, particularly in De La Salle University – Laguna Campus. The Storm Water Management Model (SWMM) was utilized to simulate different rainfall scenarios on selected little to no vegetation regions with increasing permeable pavement area coverage. The findings showed that the LID surface area to subcatchment area (SA/CA) ratio is inversely proportional to the total runoff reduction observed in all rainfall scenarios. The total runoff reached zero when the SA/CA ratio was at least 50%. The permeable pavement was concluded to be effective in surface runoff infiltration, reduction, and storage which is beneficial for long-term stormwater management and flood prevention strategies. The study can be used in future investigations and applications of similar LID technologies.