Webbläsaren som du använder stöds inte av denna webbplats. Alla versioner av Internet Explorer stöds inte längre, av oss eller Microsoft (läs mer här: * https://www.microsoft.com/en-us/microsoft-365/windows/end-of-ie-support).

Var god och använd en modern webbläsare för att ta del av denna webbplats, som t.ex. nyaste versioner av Edge, Chrome, Firefox eller Safari osv.

Default user image.

Andreas Persson

Universitetslektor

Default user image.

Management of urban floods based on tolerable consequences in an uncertain future

Författare

  • Salar Haghighatafshar
  • Per Becker
  • Steve Moddemeyer
  • Andreas Persson
  • Johanna Sörensen
  • Henrik Aspegren
  • Karin Jönsson

Summary, in English

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.

Avdelning/ar

  • Avdelningen för kemiteknik
  • Avdelningen för Riskhantering och Samhällssäkerhet
  • Centrum för geografiska informationssystem (GIS-centrum)
  • Institutionen för naturgeografi och ekosystemvetenskap
  • Avdelningen för Teknisk vattenresurslära

Publiceringsår

2022

Språk

Engelska

Sidor

6955-6963

Publikation/Tidskrift/Serie

Proceedings of the 39th IAHR World Congress (Granada, 2022)

Dokumenttyp

Konferensbidrag

Förlag

The International Association for Hydro-Environment Engineering and Research (IAHR)

Ämne

  • Oceanography, Hydrology, Water Resources

Status

Published