Bridging the gap between sustainability and resilience of civil infrastructure using lifetime resilience

Authored by: David Y. Yang , Dan M. Frangopol

Routledge Handbook of Sustainable and Resilient Infrastructure

Print publication date:  December  2018
Online publication date:  December  2018

Print ISBN: 9781138306875
eBook ISBN: 9781315142074
Adobe ISBN:

10.4324/9781315142074-23

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Abstract

In this chapter, functional integrity and structural longevity of resilient civil infrastructure are discussed. The former deals with the overall lifetime impacts of civil infrastructure from economic, social, and environmental aspects. The latter is focused on the enhancement of the life-cycle performance of civil infrastructure so that it can accommodate needs for generations to come. Based on a comprehensive review of the current state-of-the-art in sustainable civil infrastructure, it is suggested herein that the functional integrity perspective be considered using probabilistic multi-attribute utility theory (MAUT) to balance the desirability of economic, social, and environmental outcomes, whereas the structural longevity perspective be evaluated with sustainability-informed life-cycle assessment (LCA). Various aspects of MAUT and generic models for LCA are summarized in this chapter. To bridge the gap between sustainability and resilience, a novel concept referred to as lifetime resilience is proposed to embed resilience analysis into the LCA of civil infrastructure. Considering the uncertainties involved in MAUT and LCA, a holistic probabilistic framework is proposed for multi-objective life-cycle performance optimization considering multi-attribute utilities of lifetime risk, intervention actions, and lifetime resilience.

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