IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Flood risk management and adaptation : Selecting optimal sustainable drainage design for urban runoff reduction
Selecting optimal sustainable drainage design for urban runoff reduction
Different changes in the traditional way of managing flooding are being developed or tested in many countries worldwide. It has long been recognized that risk is a central consideration in providing appropriate flood protection and decision making under uncertainty. Besides, flood risk management involves the purposeful choice of suitable plans, strategies and measures that are intended to reduce flood risk. However, the current drainage design practice is still based on the tradition of engineering solutions. Accordingly in recent years the idea to find optimal sustainable drainage design is being recognized through a number of methods which vary from products, material, technologies to reduce flood risks and pollution control. The work described here explains the optimisation component for the selection of robust sustainable drainage systems for urban runoff reduction. The approach has been applied and tested in a case study by coupling a 1D model of the drainage system with an optimisation algorithm. The sustainable drainage design is posed as a multi objective problem based on surface runoff reduction and robustness to uncertain land imperviousness. The results obtained suggest that this approach could be effective in order to reach optimal sustainable drainage design enhancing the robustness of the system to handle events that can become more frequent due to climate change. Moreover, an effective investment strategy for the selection, design and implementation of urban drainage infrastructure can be found. Further work is recommended to expand and generalize the methodology.
File Size : 676,729 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Flood risk management and adaptation
Date Published : 13/08/2015
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