Probabilistic Seismic Multi-hazard Risk and Restoration Modeling for Resilience-informed Decision Making in Railway Networks

IF 2.7 Q2 ENGINEERING, CIVIL Sustainable and Resilient Infrastructure Pub Date : 2023-01-29 DOI:10.1080/23789689.2023.2170090

Saeideh Farahani, A. Shojaeian, B. Behnam, Milad Roohi

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Abstract

ABSTRACT Transportation systems, such as railways, are considered critical infrastructure. It is essential to identify potential hazards that can affect the functionality of these systems and quantify metrics that can be used for resilience-informed decision-making. This paper develops an integrated probabilistic model for seismic multi-hazard risk and restoration assessment of railway systems by accounting for the effects of seismic waves propagation, liquefaction and landslide as main phenomena affecting the integrity of distributed networked infrastructure; this is done via a GIS-based user interface. An illustrative case study is then presented to assess the seismic risk and restoration of the Tehran-Sari railway in Iran. The implementation results demonstrate the capability of the presented methodology to quantify physical metrics (including combined damage state of network components, component- and system-level functionality and restoration) and economic loss. These metrics can assist officials with implementing retrofit plans to reduce loss and improve the resilience of railway system segments.

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铁路网弹性决策的概率地震多灾害风险与恢复模型

交通系统，如铁路，被认为是关键的基础设施。识别可能影响这些系统功能的潜在危险并量化可用于弹性知情决策的指标至关重要。考虑到地震波传播、液化和滑坡是影响分布式网络基础设施完整性的主要现象，建立了铁路系统地震多灾害风险和恢复评估的综合概率模型;这是通过基于gis的用户界面完成的。然后提出了一个说明性的案例研究，以评估伊朗德黑兰-萨里铁路的地震风险和恢复。实施结果表明，所提出的方法能够量化物理指标(包括网络组件的综合损坏状态、组件和系统级功能和恢复)和经济损失。这些指标可以帮助官员实施改造计划，以减少损失，提高铁路系统各部分的弹性。

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来源期刊

Sustainable and Resilient Infrastructure ENGINEERING, CIVIL-

CiteScore

7.60

自引率

10.20%

发文量

期刊介绍： Sustainable and Resilient Infrastructure is an interdisciplinary journal that focuses on the sustainable development of resilient communities. Sustainability is defined in relation to the ability of infrastructure to address the needs of the present without sacrificing the ability of future generations to meet their needs. Resilience is considered in relation to both natural hazards (like earthquakes, tsunami, hurricanes, cyclones, tornado, flooding and drought) and anthropogenic hazards (like human errors and malevolent attacks.) Resilience is taken to depend both on the performance of the built and modified natural environment and on the contextual characteristics of social, economic and political institutions. Sustainability and resilience are considered both for physical and non-physical infrastructure.