A Review of a Socio-Technical System Approach for Interdependent Infrastructure Systems Resilience Analysis: Present Status and Future Trends

Interdependency between infrastructure increases the possibility of catastrophic events by amplifying the impact of small-scale initial failure, which has a significant effect on the resilience of the infrastructure system. While there has been a bunch of research trying to identify and simulate interdependency between or inside infrastructure systems, the effect of human behavior on system resilience has not received much attention until recent years. In this paper, a comprehensive literature review on interdependent infrastructure systems resilience analysis has been conducted from a socio-technical perspective. Results show while the interdependency between social and physical systems is not as clearly defined as that inside each system, there appear two types of interactions in terms of human's role in the whole system: the service object and the decision-maker. As for methodology applied, most existing research still spends effort on building frameworks and indicators to discuss how to integrate social aspects into the resilience analysis process, while quantitative approaches are still few used. Detailed topics and methodology applied have been discussed, based on which we propose open issues and directions for future work along with human involved interdependent infrastructure system resilience analysis.