Identification of Suitable Locations for Permeable Pavements and Bioretention Ponds / Rain Gardens Using GIS Suitability Analysis for Enhanced Stormwater Management Capacity in the City of Dallas

Abstract

Low Impact Development (LID) Strategies have shown effectiveness in managing stormwater efficiently at its source. LID strategies can be utilized to manage storm water in coordination with conventional stormwater management infrastructure to increase efficiency and reduce flooding in case of extreme precipitation events. In this study GIS suitability analysis technique has been used to identify suitable locations for permeable pavements and bioretention ponds / rain gardens; two of the four main LID Best Management Practices (BMPs) within the City of Dallas. The Analytical Hierarchy Process (AHP) was used to determine weights of factors for suitability analysis. Case studies from Bryan - College Station, Texas, demonstrate the effectiveness of LID BMPs in managing stormwater specifically in Texas.