Mapping Inherited Infrastructure Risk across a Continuous Risk Spectrum: A Bottom-Up GIS Framework for Modelling Climate- Induced Power Cascades on Road Operability

Understanding interdependencies between infrastructure systems requires critical action and is the most urgent infrastructure risk in the forthcoming Technical Report for the UK Climate Change Risk Assessment. This research presents a methodology to assess the systemic vulnerabilities resulting from interdependent infrastructure, which is inherently missing in current climate risk assessments. It describes how to combine principles from mapping Climate Risk and Vulnerability Assessments (CRVA) and interdependency cascade modelling to create an inherited infrastructure risk score to determine the threat of climate-induced power outages throughout the West Midlands Combined Authority’s (WMCA) road network.