Modelling infrastructure interdependency at a local scale: Value, methodologies and challenges

Abstract

Natural hazards such as floods, bushfires, cyclones or hurricanes, can cause significant damage that disrupts our infrastructure systems. Climate change is making such extreme events more frequent and more severe. In addition, infrastructure systems have become more interconnected and interdependent. By interconnected, we mean that infrastructure systems use each other's output and operate together to provide joint services. The interdependence of two systems or components, on the other hand, refers to the effect of a decline of the performance of one system or component on another. Hence, a disruption to one infrastructure system may propagate into others and eventually affect various servi..