A Framework Towards Assessing the Resilience of Urban Transport Systems

As critical cyber-physical systems, urban transport systems are vulnerable to natural disasters and deliberate attacks. Ensuring their resilience is crucial for sustainable operations and includes the ability to withstand, absorb and recover efficiently from disruptions. Assessing the resilience of such systems requires a comprehensive set of performance indicators covering social, economic, organisational, environmental and technical concerns. In addition, the interdependence of the different modes of transport and the resulting human activities requires the inclusion of the spatial dimension to capture potential cascading failures. Furthermore, the integration of both aleatory (data) and epistemic (modelling) uncertainties is essential for robust performance indicators. Current methods for assessing the resilience of transport systems lack standardised performance indicator systems and assessment methods, making comparative analysis and benchmarking of disruption management strategies difficult. This paper proposes a unified framework for modelling and assessing performance indicators for urban transport systems. The framework is demonstrated using a simulated scenario in Eclipse SUMO and paves the way for future research in this area.