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

Evangelos Baltas,Ioannis M Kourtis,Vassilios A Tsihrintzis

doi:10.3390/proceedings2110640

Evangelos Baltas, Ioannis M Kourtis + Show 1 more

Open Access

https://doi.org/10.3390/proceedings2110640

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Publication Date: Aug 3, 2018
Citations: 14	License type: CC BY 4.0

Affiliation: National Technical University of Athens

Abstract

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.

Highlights

Urban drainage networks contribute to human well-being by preventing flooding, and so are considered as essential infrastructure [1,2,3,4]
The present paper analyzed the impacts of Low Impact Development (LID) designs on urban flooding in a highly urbanized catchment in Athens, Greece, where two LID practices were modeled and compared with conventional drainage solutions for stormwater management
Mitigation measures must be studied in combination, in order to address runoff volumes and discharges in urbanized basins, and so these modeling scenarios are primarily meant more for providing bounds on LID practices as flooding mitigation measures

Summary

Introduction

Urban drainage networks contribute to human well-being by preventing flooding, and so are considered as essential infrastructure [1,2,3,4]. New technologies (i.e., sustainable drainage solutions) have emerged that take into account other aspects of urban stormwater management, such as [1,2,12,13,14]: (i) runoff quality; (ii) visual amenity; (iii) recreational value; and (iv) ecological protection. Nowadays sustainable drainage solutions are widely recommended and applied in different parts of the world [12,15,16,17,18,19,20,21].

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