A survey of methodologies for resilience assessment of road networks under different disruption events

A resilient transportation system is critical to ensuring the mobility of people and goods, even under emergency conditions. It also helps reduce the economic and social costs associated with disasters and improves the quality of life for citizens. It is a complex concept involving several dimensions, including the redundancy of infrastructure, the diversity of transportation assets, the adaptability of the system to sudden changes, and its ability to withstand stresses. The relationship between resilience and concepts such as robustness, reliability, risk, and vulnerability needs to be explored further to get a more in-depth picture of the problem. In this context, this work proposes a comprehensive survey of methodologies for resilience assessment. The study explores the two main evaluation method categories: functionality-based metrics, which consider both structural and operational factors, and topological metrics, which prioritize network structure. This analysis also aims to clarify concepts and provide useful insights to researchers and practitioners for resilience-oriented transportation planning.