Action 3 - report in English
Which are the transport networks and infrastructures most at risk to extreme climate change impacts? The following report offers a methodological framework for risk analysis.
Based on bibliographical references, this collection of methodological concepts proposes a risk analysis methodology for transport infrastructures faced with the hazards of climate change. This involves :
• defining and analyzing climate hazards that could impact infrastructures. The hazards identified as having a potential impact are then rated based on their characteristics ;
• breaking down the transport networks studied into smaller units : systems (tunnel, bridge, etc.) and components (cable, etc.). The study of the physical vulnerability factors of the networks, systems and
components can then be used to assign a vulnerability rating to them ;
• defining and rating the functional criticality of the network, which is obtained by cross-referencing the issues of the network with its characteristics.
The cross-referencing of climate hazard, physical vulnerability and functional criticality ratings defines a level of risk for each system or component. This type of analysis follows an iterative process : the number of iterations depends on the level of detail expected of the results and, therefore, the objectives of the analysis.
Upon completion of the analysis, various strategies and risk processing measures can be implemented.