Quantification of Resilience in Geotechnical Asset Management Applications

With the emerging application of geotechnical asset management (GAM) and the increasing risks due to extreme events and the aging transportation infrastructure, resilience of geotechnical assets is a critical component that should be incorporated within GAM. In this paper, we introduce a quantitative risk-based approach to define and quantify resilience at individual geotechnical assets and the resilience of a network. The proposed general definition of resilience is the ability to anticipate and prepare for changing conditions and disruptive events to enable the asset or a system of assets to withstand and recover rapidly from disruptions (without failure) by restoring an acceptable level of service and condition in a specified time frame, which can be measured using observations and/or performance models. Following the discussion about the attributes encompassed in this definition, we introduce a holistic resilience assessment framework for geotechnical asset, focusing on its application within a GAM program.