ABSTRACT
Transportation systems are identified as critical infrastructure because its disruption is associated with high economic losses and important social and societal consequences. Given that transportation systems are especially vulnerable to a number of classical and emerging threats, an adequate resilience management may bring enormous benefits. Despite the big efforts at defining methodological approaches to address this topic in the last years, there is still a certain lack of consensus, where very often resilience assessment is understood as an extension of the well-established risk assessment. This chapter discusses the main differences between the risk-based and the resilience-based approaches. These differences motivate the development of specific methods for the resilience assessment. The second part of the chapter presents an updated review of the existing methodologies to evaluate the resilience of transport networks. Finally, the future of Resilience Science in the Transportation field is discussed. Reaching a common understanding of the meaning of resilience and its associated properties will remove ambiguities and ensure coherent and agreed approaches across stakeholder disciplines. As a result, it will potentially impact upon the security and competitiveness of this critical sector.
