Flood Management with SUDS: A Simulation–Optimization Framework

Author:

Ferrans Pascual1ORCID,Reyes-Silva Julian David2ORCID,Krebs Peter2,Temprano Javier3ORCID

Affiliation:

1. Doctoral School, University of the Basque Country UPV/EHU, 48940 Leioa, Spain

2. Institute for Urban Water Management, Department of Hydrosciences, Technische Universität Dresden, 01062 Dresden, Germany

3. Department of Water and Environmental Sciences and Techniques, Cantabria University, 39005 Santander, Spain

Abstract

Urbanization and climate change are the main driving force in the development of sustainable strategies for managing water in cities, such as sustainable urban drainage systems (SUDS). Previous studies have identified the necessity to develop decision-making tools for SUDS in order to adequately implement these structures. This study proposes a simulation–optimization methodology that aims to ease the decision-making process when selecting and placing SUDS, with the specific goal of managing urban flooding. The methodology was applied to a real case study in Dresden, Germany. The most relevant variables when selecting SUDS were the spatial distribution of floods and the land uses in the catchment. Furthermore, the rainfall characteristics played an important role when selecting the different SUDS configurations. After the optimal SUDS configurations were determined, flood maps were developed, identifying the high potential that SUDS have for reducing flood volumes and depth, but showing them to be quite limited in reducing the flooded areas. The final section of the study proposes a combined frequency map of SUDS implementation, which is suggested for use as a final guide for the present study. The study successfully implemented a novel methodology that included land-use patterns and flood indicators to select SUDS in a real case study.

Funder

ICETEX

German Federal Ministry of Education and Research

Publisher

MDPI AG

Subject

Water Science and Technology,Aquatic Science,Geography, Planning and Development,Biochemistry

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