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

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Sammanfattning

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.
Originalspråkengelska
Sidor (från-till)659-671
TidskriftInternational Journal of River Basin Management
Volym21
Nummer4
Tidigt onlinedatum2022 juni 19
DOI
StatusPublished - 2023

Ämnesklassifikation (UKÄ)

  • Annan samhällsbyggnadsteknik
  • Infrastrukturteknik
  • Kulturgeografi

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