Management of urban floods based on tolerable consequences in an uncertain future
(2022) p.6955-6963- Abstract
- Precipitation is intrinsically associated with high uncertainty, which is exacerbated exponentially over time—especially concerning climate change. However, the current design practice in urban drainage infrastructure remains firmly bound to deterministic assumptions regarding the design load. This approach is too simplified—focusing only on the return period of the design event—and ignores the complexity of drainage systems, the potential changes in catchment hydrology and the at-risk valuable assets within. Therefore, the current design approach is inherently an unsustainable practice that cannot deal with extreme uncertainties associated with urban drainage and flood resilience in changing climate and society. This paper examines the... (More)
- Precipitation is intrinsically associated with high uncertainty, which is exacerbated exponentially over time—especially concerning climate change. However, the current design practice in urban drainage infrastructure remains firmly bound to deterministic assumptions regarding the design load. This approach is too simplified—focusing only on the return period of the design event—and ignores the complexity of drainage systems, the potential changes in catchment hydrology and the at-risk valuable assets within. Therefore, the current design approach is inherently an unsustainable practice that cannot deal with extreme uncertainties associated with urban drainage and flood resilience in changing climate and society. This paper examines the current deterministic design practice and encourages a collective discussion on the need for a paradigm shift in the engineering of pluvial floods toward a risk-based design. We believe that adopting a risk-based design will partially address the uncertainty and complexity of climate and urban drainage, respectively, although a method for the new practice in a risk-based design paradigm must be developed. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/cf1e1a32-65a0-4576-84f3-afaa8dd5e47e
- author
- Haghighatafshar, Salar LU ; Becker, Per LU ; Moddemeyer, Steve ; Persson, Andreas LU ; Sörensen, Johanna LU ; Aspegren, Henrik LU and Jönsson, Karin LU
- organization
- publishing date
- 2022
- type
- Chapter in Book/Report/Conference proceeding
- publication status
- published
- subject
- host publication
- Proceedings of the 39th IAHR World Congress (Granada, 2022)
- pages
- 19 pages
- publisher
- The International Association for Hydro-Environment Engineering and Research (IAHR)
- external identifiers
-
- scopus:85178350426
- DOI
- 10.3850/IAHR-39WC252171192022300
- language
- English
- LU publication?
- yes
- id
- cf1e1a32-65a0-4576-84f3-afaa8dd5e47e
- date added to LUP
- 2022-07-04 10:05:24
- date last changed
- 2024-01-12 11:24:28
@inproceedings{cf1e1a32-65a0-4576-84f3-afaa8dd5e47e, abstract = {{Precipitation is intrinsically associated with high uncertainty, which is exacerbated exponentially over time—especially concerning climate change. However, the current design practice in urban drainage infrastructure remains firmly bound to deterministic assumptions regarding the design load. This approach is too simplified—focusing only on the return period of the design event—and ignores the complexity of drainage systems, the potential changes in catchment hydrology and the at-risk valuable assets within. Therefore, the current design approach is inherently an unsustainable practice that cannot deal with extreme uncertainties associated with urban drainage and flood resilience in changing climate and society. This paper examines the current deterministic design practice and encourages a collective discussion on the need for a paradigm shift in the engineering of pluvial floods toward a risk-based design. We believe that adopting a risk-based design will partially address the uncertainty and complexity of climate and urban drainage, respectively, although a method for the new practice in a risk-based design paradigm must be developed.}}, author = {{Haghighatafshar, Salar and Becker, Per and Moddemeyer, Steve and Persson, Andreas and Sörensen, Johanna and Aspegren, Henrik and Jönsson, Karin}}, booktitle = {{Proceedings of the 39th IAHR World Congress (Granada, 2022)}}, language = {{eng}}, pages = {{6955--6963}}, publisher = {{The International Association for Hydro-Environment Engineering and Research (IAHR)}}, title = {{Management of urban floods based on tolerable consequences in an uncertain future}}, url = {{http://dx.doi.org/10.3850/IAHR-39WC252171192022300}}, doi = {{10.3850/IAHR-39WC252171192022300}}, year = {{2022}}, }