Simulation of Low Impact Development (LID) Practices and Comparison with Conventional Drainage Solutions

• Main Authors: Ioannis M. Kourtis, Vassilios A. Tsihrintzis, Evangelos Baltas
• Format: Article
• Language: English
• Published: MDPI AG 2018-08-01
• Series: Proceedings
• Subjects: sustainable stormwater management; Low Impact Development (LID); conventional measures; SWMM5.1
• Online Access: http://www.mdpi.com/2504-3900/2/11/640

The present work aims at quantifying the benefit of Low Impact Development (LID) practices in reducing peak runoff and runoff volume, and at comparing LID practices to conventional stormwater solutions. The hydrologic-hydraulic model used was the Storm Water Management Model (SWMM5.1). The LID practices modeled were: (i) Green roofs; and (ii) Permeable pavements. Each LID was tested independently and compared to two different conventional practices, i.e., sewer enlargement and detention pond design. Results showed that for small storm events LID practices are comparable to conventional measures, in reducing flooding. Overall, smaller storms should be included in the design process.