Abstract The catastrophic social, economic, and political impact from extreme natural hazards in recent years, e.g. Hurricane Katrina (2005), the Christchurch Earthquake (2011), and the Great East Japan Earthquake and Tsunami (2011), have engendered questions from public officials, engineers and planners as to how a community’s damaged building portfolio might be best reconstructed to enhance its performance in future hazards. The concept of building back better reflects a reconstruction approach aimed at enabling the community to achieve better performance in future hazard events. Building portfolio life-cycle analysis, developed in a concurrent study, can quantify the impact of specific reconstruction policies and decisions on the building portfolio within a community. This approach, coupled with community-dependent resilience goals aimed at limiting functionality loss and ensuring quick recovery, is utilized in this study to suggest optimal policies for post-disaster reconstruction and to guide cost-effective public decisions aimed at ensuring community resilience. The feasibility of this concept is explored using reconstruction of a mid-size community following a severe earthquake as an example in which key features that may affect optimal reconstruction decisions by community planners are identified.

中文翻译：

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生命周期分析 (LCA) 通过重建更好的重建来恢复社区建设投资组合 II：决策制定

摘要 近年来极端自然灾害造成的灾难性社会、经济和政治影响，例如卡特里娜飓风 (2005)、基督城地震 (2011) 和东日本大地震和海啸 (2011)，引起了公职人员的质疑。 、工程师和规划者关于如何最好地重建社区受损的建筑组合以提高其在未来灾害中的表现。更好地重建的概念反映了一种旨在使社区能够在未来的灾害事件中取得更好表现的重建方法。在一项并行研究中开发的建筑组合生命周期分析可以量化特定重建政策和决策对社区内建筑组合的影响。这种方法，再加上旨在限制功能损失和确保快速恢复的社区依赖复原力目标，本研究中利用这些目标来建议灾后重建的最佳政策，并指导旨在确保社区复原力的具有成本效益的公共决策。以发生严重地震后重建中型社区为例，探讨了这一概念的可行性，其中确定了可能影响社区规划者最佳重建决策的关键特征。