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Nicklas Guldåker

Universitetslektor

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A methodological approach for mapping and analysing cascading effects of flooding events

Författare

  • Björn Arvidsson
  • Nicklas Guldåker
  • Jonas Johansson

Summary, in English

Current local or regional flood risk assessments, as required by the EU flood risk directive, rarely account for cascading effects due to interdependencies between critical infrastructures. However, it is essential to consider these effects, as they may severely impact areas outside the immediate flood risk area. The main purpose is to present and problematize a method (AB-CEM) for mapping and analysing cascading effects due to floods, aiming at also being relevant for other spatially widespread hazards. The method development and the pilot study, in Sweden, reveal that there is a prominent practical need for methods for mapping and analysing critical infrastructure interdependencies and cascading effects. Another key finding is that the method process and its results can serve as an important basis for decision-making about proactive and reactive efforts related to geographically extensive hazards. We further conclude that there is a recurring problem regarding sensitive and secret data. More specifically, the conflicting interests of information availability and information security concerning critical infrastructures, which needs to be resolved at the national level and communicated through clear guidelines. The method is a much-needed step towards accounting for cascading effects of floods in practice.

Avdelning/ar

  • Institutionen för kulturgeografi och ekonomisk geografi
  • Avdelningen för Riskhantering och Samhällssäkerhet

Publiceringsår

2023

Språk

Engelska

Sidor

659-671

Publikation/Tidskrift/Serie

International Journal of River Basin Management

Volym

21

Issue

4

Dokumenttyp

Artikel i tidskrift

Förlag

International Association of Hydraulic Engineering Research

Ämne

  • Other Civil Engineering
  • Infrastructure Engineering
  • Human Geography

Nyckelord

  • cascading effects
  • flood risk assessment
  • critical infrastructure
  • interdependencies
  • GIS
  • Sweden
  • flood directive

Aktiv

Published

Projekt

  • CenCIP
  • Developed risk management and Critical Infrastructures

ISBN/ISSN/Övrigt

  • ISSN: 1814-2060