Unveiling hidden risks in healthcare from flood-induced transportation disruption in Germany

Abstract Despite investments in disaster resilience, flooding continues to disrupt healthcare systems, both by limiting access and through failures in the surrounding transportation network. Existing models for mitigation planning often overlook critical dynamics, such as traffic rerouting, particul...

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Main Authors: Jonas Wassmer, Seth Bryant, Paul Schimansky, Lindsay T. Keegan, Maria Pregnolato, Jürgen Kurths, Norbert Marwan, Bruno Merz
Format: Article
Language:English
Published: Nature Portfolio 2025-08-01
Series:Communications Earth & Environment
Online Access:https://doi.org/10.1038/s43247-025-02645-y
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author Jonas Wassmer
Seth Bryant
Paul Schimansky
Lindsay T. Keegan
Maria Pregnolato
Jürgen Kurths
Norbert Marwan
Bruno Merz
author_facet Jonas Wassmer
Seth Bryant
Paul Schimansky
Lindsay T. Keegan
Maria Pregnolato
Jürgen Kurths
Norbert Marwan
Bruno Merz
author_sort Jonas Wassmer
collection DOAJ
description Abstract Despite investments in disaster resilience, flooding continues to disrupt healthcare systems, both by limiting access and through failures in the surrounding transportation network. Existing models for mitigation planning often overlook critical dynamics, such as traffic rerouting, particularly at the national scales necessary for effective planning. Here we present a scalable method to identify hospitals at risk of emergency response delays and service disruptions caused by flood-induced traffic impacts. Our approach integrates a regional flood model with a gravity-based traffic model to simulate traffic flow from open-source road data. Our findings reveal hidden risks for hospitals located far from flood zones, showing how flood-related road disruptions and traffic rerouting can reduce access to critical healthcare services. In particular, we found 75 (of 2,475) hospitals at risk of patient surges beyond their regular capacity, driven solely by flood-related traffic disruptions. Of these, a third are more than 10 km from the nearest inundation, suggesting these facilities may be unaware and thus under-prepared — risks that have, until now, remained hidden from assessments.
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spelling doaj-art-ee3dff2aac32439c91b6f8531b7b41d92025-08-24T11:52:39ZengNature PortfolioCommunications Earth & Environment2662-44352025-08-016111110.1038/s43247-025-02645-yUnveiling hidden risks in healthcare from flood-induced transportation disruption in GermanyJonas Wassmer0Seth Bryant1Paul Schimansky2Lindsay T. Keegan3Maria Pregnolato4Jürgen Kurths5Norbert Marwan6Bruno Merz7Institute of Environmental Science and Geography, University of PotsdamInstitute of Environmental Science and Geography, University of PotsdamInstitute of Environmental Science and Geography, University of PotsdamDivision of Epidemiology, Department of Internal Medicine, University of UtahUniversity of Bristol, Department of Civil EngineeringPotsdam Institute for Climate Impact Research (PIK), Member of the Leibniz AssociationPotsdam Institute for Climate Impact Research (PIK), Member of the Leibniz AssociationInstitute of Environmental Science and Geography, University of PotsdamAbstract Despite investments in disaster resilience, flooding continues to disrupt healthcare systems, both by limiting access and through failures in the surrounding transportation network. Existing models for mitigation planning often overlook critical dynamics, such as traffic rerouting, particularly at the national scales necessary for effective planning. Here we present a scalable method to identify hospitals at risk of emergency response delays and service disruptions caused by flood-induced traffic impacts. Our approach integrates a regional flood model with a gravity-based traffic model to simulate traffic flow from open-source road data. Our findings reveal hidden risks for hospitals located far from flood zones, showing how flood-related road disruptions and traffic rerouting can reduce access to critical healthcare services. In particular, we found 75 (of 2,475) hospitals at risk of patient surges beyond their regular capacity, driven solely by flood-related traffic disruptions. Of these, a third are more than 10 km from the nearest inundation, suggesting these facilities may be unaware and thus under-prepared — risks that have, until now, remained hidden from assessments.https://doi.org/10.1038/s43247-025-02645-y
spellingShingle Jonas Wassmer
Seth Bryant
Paul Schimansky
Lindsay T. Keegan
Maria Pregnolato
Jürgen Kurths
Norbert Marwan
Bruno Merz
Unveiling hidden risks in healthcare from flood-induced transportation disruption in Germany
Communications Earth & Environment
title Unveiling hidden risks in healthcare from flood-induced transportation disruption in Germany
title_full Unveiling hidden risks in healthcare from flood-induced transportation disruption in Germany
title_fullStr Unveiling hidden risks in healthcare from flood-induced transportation disruption in Germany
title_full_unstemmed Unveiling hidden risks in healthcare from flood-induced transportation disruption in Germany
title_short Unveiling hidden risks in healthcare from flood-induced transportation disruption in Germany
title_sort unveiling hidden risks in healthcare from flood induced transportation disruption in germany
url https://doi.org/10.1038/s43247-025-02645-y
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