Bridge Infrastructure Resilience Analysis Against Seismic Hazard Using Best-Worst Methods

Resilient bridge infrastructure is a prerequisite for sustainable and uninterrupted transportation systems. Even though the transportation agencies are struggling and encountering numerous challenges to ratify resilient bridge infrastructure against natural disasters like earthquakes, floods, hurricanes, identifying and prioritizing the resilient bridge infrastructure factors against the seismic hazard is obligatory enhancing the bridge's endurance and effective recovery. At first, 15 resilience attributes under two major resiliency factors, i.e., reliability and recovery, were chosen based on the literature review for bridge infrastructure sustainability against earthquake hazard. An expert opinion has been taken to integrate the nonlinear, complex relationship between seismic resilience parameters for bridge infrastructure. Based on the expert’s opinion, the weightage of the seismic resiliency factors has been computed using the Best-Worst method. The estimated weightage of resilience parameters provides the vulnerable scenarios of bridge infrastructure against seismic hazard. Moreover, prioritizing the sensitive parameters will guide the policymakers in making the right decision for resilient bridge infrastructures against future seismic hazard.