Vulnerability and resilience of transportation systems: A recent literature review

With the development of integrated and intelligent transportation systems, the stability and security of system performance are highly emphasized. Resilience and vulnerability are representative indicators in the performance analysis of transportation systems. A large number of related studies have emerged in recent years. Therefore, this paper reviews the recent progress in the study of vulnerability and resilience. Specific definitions of resilience and vulnerability are first given from the perspective of transportation system's supply and demand. Other related concepts of transportation system performance (TSP) are also discussed including reliability, robustness, survivability and risk. The existing studies can be divided into two aspects, i.e., the traditional topological structure and system structure analysis. The study of topology structure mainly revolves around graph theory, which is also the cornerstone of TSP research. In recent years, advances in data analysis and model simulation technology have led to an increasing number of studies considering the overall transportation system structure. The related metrics and research methods are carefully analyzed and summarized from qualitative and quantitative perspectives. Research challenges are discussed, and future directions are presented.