Urban seismic resilience mapping: a transportation network in Istanbul, Turkey

Byun, J.-E. and D’Ayala, D. (2022) Urban seismic resilience mapping: a transportation network in Istanbul, Turkey. Scientific Reports, 12, 8188. (doi: 10.1038/s41598-022-11991-2) (PMID:35581236) (PMCID:PMC9114029)

Abstract

When a seismic event occurs, transportation networks play a critical role in undertaking emergency activities such as evacuation and relief supply. Accordingly, to secure their functionality, it is essential to accurately assess their resilience. In particular, this study performs a rigorous probabilistic analysis on the seismic resilience of a transportation network in Istanbul, Turkey. The analysis accuracy is enhanced by considering, along with the structural damage of roadways, the additional disruption mode of network performance caused by the debris falling from damaged objects in their vicinity. Moreover, we obtain the results as a map of resilience measure, which enables us to investigate the disruption inequality across the study area and identify critical factors that govern the system resilience. To enable such sophisticated probabilistic analysis, a Bayesian network (BN) model is developed that involves various types of information from the hazard process to the performance of structures and systems. Then, the BN is quantified by identifying and compiling a comprehensive list of datasets. Thereby, this study analyses large-scale systems involving thousands of structures, while providing general probabilistic models and data schema that can be employed for other transportation networks.

• Item Type: Articles
• Additional Information: This research was undertaken as part of Tomorrow’s Cities—UK Research and Innovation (UKRI) Global Challenges Research Fund (GCRF) Urban Disaster Risk Hub, funded through a UKRI Collective Fund award. Open Access funding enabled and organized by Projekt DEAL.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Byun, Dr Ji-Eun
• Authors: Byun, J.-E., and D’Ayala, D.
• College/School: College of Science and Engineering > School of Engineering > Infrastructure and Environment
• Journal Name: Scientific Reports
• Publisher: Nature Research
• ISSN: 2045-2322
• ISSN (Online): 2045-2322
• Copyright Holders: Copyright © 2022 The Authors
• First Published: First published in Scientific Reports 12: 8188
• Publisher Policy: Reproduced under a Creative Commons License