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Measuring spatial accessibility to critical infrastructure: The Access Road Identification model

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  • Mager Pozo, Ana Maria
  • Priesmeier, Peter
  • Fekete, Alexander

Abstract

Natural hazards such as earthquakes or floods can severely disrupt transportation networks and lead to cascading effects to other critical infrastructure (CI). A functioning road network is crucial to maintain spatial accessibility of CI such as hospitals or fire stations, especially during disaster scenarios. In the present study, we introduce a geographic information system (GIS)-based model that is able to identify and quantify the access roads to CI facilities through shortest path analysis, namely the Access Road Identification (ARI)-model. Including hazard maps into the model allows comparing CI accessibility in a baseline scenario with a hazard scenario. We exemplary apply the elaborated model to two case studies considering the accessibility of hospitals during floods in Hamburg, Germany and fire stations during an earthquake event in the Tehran-Karaj metropolitan region, Iran.

Suggested Citation

  • Mager Pozo, Ana Maria & Priesmeier, Peter & Fekete, Alexander, 2025. "Measuring spatial accessibility to critical infrastructure: The Access Road Identification model," International Journal of Critical Infrastructure Protection, Elsevier, vol. 49(C).
    • Handle: RePEc:eee:ijocip:v:49:y:2025:i:c:s1874548225000216
    DOI: 10.1016/j.ijcip.2025.100760
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    References listed on IDEAS

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