One of the most important factors when assessing the resilience of critical infrastructure is its vulnerability to extreme events. This study focuses on developing correlation maps that define the vulnerability to fire risk of critical infrastructure and its zone of influence. Using an index approach, a vulnerability assessment is challenging due to the fact that observing and measuring certain vulnerability aspects is not too easy. Furthermore, analyzing the unique vulnerabilities of individual elements becomes intricate, given their interdependencies and correlations. Leveraging GIS mapping techniques, we investigate the impacts of infrastructure disruption on neighboring elements and the urban fabric. The methodology enables multiple levels of assessment, facilitating the identification of vulnerable elements and optimizing decision-making processes before and after extreme events. Our findings highlight the significance of prioritizing emergency planning, enhancing accessibility, implementing preventive measures, and adopting a proactive emergency response approach. In conclusion, these measures contribute to mitigating vulnerability and safeguarding critical infrastructure and surrounding communities from extreme events.

<p>One of the most important prerequisites for the critical Infrastructure’s risk management is the study of the collateral effects between different critical Infrastructures (CI) to obtain a critical index that indicates which CI requires more effort in terms of budget and studies, i.e., ranking the criticality of the Infrastructures. Therefore, this article presents a brief literature review of the state of the art that was conducted regarding the methodologies and models for the critical infrastructure’s risk management and the importance of categorizing its level of risk and the criticality of each infrastructure. This paper consists of three main parts i) A short introduction on the background and importance of this study; ii) a brief display and explanation of the inspected methodologies for risk management and the quantification of the criticality of CI; iii) implementation of the selected methodologies applied on a case study situated in the north of Portugal applied to Fire Risk.</p>

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Sustainable construction has become a growing trend among researchers and stakeholders. Simultaneously, resilience and risk assessments for civil Infrastructures have flourished in terms of importance among researchers, economic sectors, and society. Nevertheless, there is no abundant research that correspond to both approaches, despite that, there are massive similarities and shared characteristics between both investigation branches. Distinctively, this year has demonstrated that sustainable development is directly obstructed by different extreme events that trigger risks and vulnerabilities in civil Infrastructures. These extreme events require a deep and complex study to minimize the impacts they may cause in society and economy, two main factors considered in the study of sustainability. Therefore, when a risk and resilience assessments are conducted, it is already analyzed as a sizable part of sustainability. Consequently, there exists a possibility to create a methodology that examines and assesses four categories of civil infrastructure sustainability: Technical, environmental, social, and economical. The aim of this paper is to demonstrate the need of a comprehensive approach between sustainability, risk, and resilience assessment, compiling and comparing the existing methodologies for assessing the impacts on civil infrastructures, showing that both present resemblances and none can be omitted, being necessary for the decision-making.