Sustainability and climate resilience metrics and trade-offs in transport infrastructure asset recovery
Sustainability and climate resilience metrics and trade-offs in transport infrastructure asset recovery
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DOI：
10.1016/j.trd.2023.103800
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发表时间：
2023-06-09
影响因子：
7.6
通讯作者：
Argyroudis, Sotirios
中科院分区：
文献类型：
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作者：
Mitoulis, Stergios-Aristoteles;Bompa, Dan, V;Argyroudis, Sotirios
气候变化加剧了自然灾害，并不断挑战关键基础设施的性能。因此，基础设施的气候复原力和可持续适应性至关重要。本文提出了一个新的框架和指标，用于优化可持续性（温室气体排放- GHG），气候适应能力（恢复时间）和成本。该框架旨在促进运营商和利益攸关方的决策，并就这些原则之间的可行权衡进行沟通。它描述了使用相关指标从可持续性和复原力的角度量化事前适应和事后恢复的方法。本文的结论与应用程序的框架上的桥梁，规范化的指标集成到一个独特的指数（ISRC），它可以用于恢复优先级的类似资产的投资组合。优化计划包括桥梁恢复，同时减少温室气体排放。气候变化对可持续性和恢复力指数的影响进行了研究，结果表明，最佳解决方案是如何受到不同的气候预测的不利影响。在所研究的所有情景中，在权衡弹性和成本时，更可持续的解决方案是减少温室气体排放量（tCO 2 e）的最佳解决方案。基于本文分析的案例研究，低碳恢复战略导致ISRC提高了50%，这可以证明在交通资产中投资低温室气体适应战略是合理的。
Climate change exacerbates natural hazards and continuously challenges the performance of critical infrastructure. Thus, climate resilience and sustainable adaptation of infrastructure are of paramount importance. This paper puts forward a novel framework and metrics for optimising sustainability (Greenhouse Gas emissions - GHG), climate resilience (restoration time), and cost. The framework aims to facilitate decision-making by operators and stakeholders and communicate actionable trade-offs between these principles. It describes approaches for quantifying ex-ante adaptation and ex-post recovery from the lenses of sustainability and resilience using relevant metrics. This paper concludes with an application of the framework on a bridge, where normalised metrics are integrated into one unique index (ISRC), which can be used in the recovery prioritisation for portfolios of similar assets. The optimisation program includes a bridge recovery, while reducing GHG emissions. The impact of climate change on the sustainability and resilience indexes is examined and the results show how the optimum solutions are adversely affected by different climate projections. In all scenarios examined, more sustainable solutions leading to reduced GHG emissions (tCO2e) are the optimum solutions when weighing resilience and cost. Based on the case study analysed in this paper, the low carbon restoration strategy resulted in up to 50% higher ISRC, which can justify investments for low GHG adaptation strategies in transport assets.