Abstract
The objective of this paper is to propose a System-of-Systems (SoS) approach for an integrated assessment of resilience in civil transportation infrastructure in the U.S. A SoS approach is adopted for systemic assessment. Data obtained from case studies of two recent natural disasters in the U.S. are utilized to explore the status quo, key players and interactions, and the drivers to and barriers of improving resilience in transportation infrastructure systems. The findings indicate that strategies for enhancing resilience in transportation infrastructure systems include redistributing the available funding through a special funding vehicle, using resilience-based performance measures, and integrating the efforts of different stakeholders. The SoS approach along with the findings from the case studies provides an analytical tool for understanding the dynamics of resilience in infrastructure systems. Such understanding could lead to identifying strategies for enhancing resilience in infrastructure systems. The study presented in this paper provides new insights to identify the determinants of resilience in highway transportation infrastructure based on a SoS approach.
Highlights
The terms vulnerability and resilience have entered into the disaster literature in the last three decades
Information regarding the activities and interactions of different stakeholders related to two case studies of 2013 Colorado Floods and 2012 Hurricane Sandy is collected and analyzed using the proposed SoS approach to facilitate an integrated evaluation of transportation infrastructure resilience in the U.S In depth interviews were conducted with different stakeholders at local, state and federal levels involved in preparedness planning, mitigation, response, and recovery efforts in the case studies
This paper presented the dimensions of analysis and determinants of resilience in transportation infrastructure using a systems-of-systems approach
Summary
The terms vulnerability and resilience have entered into the disaster literature in the last three decades. Kenneth Hewitt used the term “vulnerability” in the 1980s in his seminal book, “Interpretations of Calamity” [1] He criticized the dominant view in the disaster literature that considered disasters as unexpected acts of nature that were beyond the control of human beings. There is a knowledge gap related to investigating the link between the decision-making processes of different players pertaining to resource allocation for rehabilitation, capacity expansion, and retrofit actions; the condition of infrastructure assets; and the level of resilience of infrastructure systems against natural disasters at the asset, network, sub-national, and national levels. The proposed approach is used for assessment of the dynamics of transportation infrastructure resilience in the U.S using the information collected from two case studies of 2012 Hurricane Sandy and 2013 Colorado Floods
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