This project seeks to establish new indicators to measure the state of preparedness in a domino effects context. The only indicators currently available (see literature review) are indeed designed to measure the presence rather than the effectiveness of the means of intervention put in place in preparation of possible disasters. As explained above, when a critical infrastructurefails, this can lead to the failure of other critical infrastructures more or less rapidly. This project will measure the state of preparedness of the critical infrastructures in face of this problem. The state of preparedness will be defined as the means implemented to effectively intervene between the moment when a failure affects one critical infrastructure and the moment when it begins to spread to other critical infrastructures. In other words, will evaluate the capacity of a given critical infrastructure to avoid the propagation of its failure to the other critical infrastructures of its sector, or of the capacity of the other critical infrastructures to be as resilient as possible; i.e. to be able to continue to function for a longer time despite the original failure.