PSI - Issue 84

ScienceDirect Structural Integrity Procedia 00 (2026) 000–000 Structural Integrity Procedia 00 (2026) 000–000 Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Available online at www.sciencedirect.com ScienceDirect

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

Procedia Structural Integrity 84 (2026) 33–40

© 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the Conference Abstract Road networks are the primary way of transportation for people and goods in most countries. Beyond their daily function, specific elements of the network are crucial for emergency operations during disruptive events and natural disasters. In this study, a methodology is proposed to identify road sections exposed to earthquakes, landslides, floods, and tsunamis, and to evaluate how their failures can impact the functionality and global efficiency of road networks. The hazard associated with individual threats is calculated using distinct Geographic Information System-based methods, followed by multi-hazard assessment through multi-criteria evaluation techniques. These results are combined with complex network analyses to evaluate road network global efficiency under targeted failure scenarios, yielding a criticality score for each road section. As a case study, the proposed methodology is applied to the road network of Messina, Italy. The findings support data-driven decision-making in road management, optimizing maintenance prioritization in terms of budget allocation and scheduling. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the Conference Keywords: Road networks; Multi-hazards; Complex networks Abstract Road networks are the primary way of transportation for people and goods in most countries. Beyond their daily function, specific elements of the network are crucial for emergency operations during disruptive events and natural disasters. In this study, a methodology is proposed to identify road sections exposed to earthquakes, landslides, floods, and tsunamis, and to evaluate how their failures can impact the functionality and global efficiency of road networks. The hazard associated with individual threats is calculated using distinct Geographic Information System-based methods, followed by multi-hazard assessment through multi-criteria evaluation techniques. These results are combined with complex network analyses to evaluate road network global efficiency under targeted failure scenarios, yielding a criticality score for each road section. As a case study, the proposed methodology is applied to the road network of Messina, Italy. The findings support data-driven decision-making in road management, optimizing maintenance prioritization in terms of budget allocation and scheduling. © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the Conference Keywords: Road networks; Multi-hazards; Complex networks III Fabre Conference: Existing Bridges, Viaducts, and Tunnels: Research, Innovation, and Applications Multi-hazard resilience assessment of road networks: the case study of the municipality of Messina N. Kheirkhahan a *,N. Amoroso b,c , L. Bellantuono c,d , R. Bellotti a,c , G. Buffarini e , P. Clemente e , L. De Biase e , L.M. Falconi e , A. Giocoli e , A. Lipari e , V. Lucaferri e , C. Ormando e , E. Pantaleo a,c , M. Pollino e , A. Tofani e III Fabre Conference: Existing Bridges, Viaducts, and Tunnels: Research, Innovation, and Applications Multi-hazard resilience assessment of road networks: the case study of the municipality of Messina N. Kheirkhahan a *,N. Amoroso b,c , L. Bellantuono c,d , R. Bellotti a,c , G. Buffarini e , P. Clemente e , L. De Biase e , L.M. Falconi e , A. Giocoli e , A. Lipari e , V. Lucaferri e , C. Ormando e , E. Pantaleo a,c , M. Pollino e , A. Tofani e a Inter-University Physics Department “M. Merlin”, Università degli Studi di Bari Aldo Moro, Italy b Pharmacy Department – Pharmaceutical Sciences, Università degli Studi di Bari Aldo Moro, Italy c National Institute for Nuclear Physics (INFN), Bari Section, Italy d Translational Biomedicine and Neuroscience (DiBraiN) Department, Università degli Studi di Bari Aldo Moro, Italy e ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Italy a Inter-University Physics Department “M. Merlin”, Università degli Studi di Bari Aldo Moro, Italy b Pharmacy Department – Pharmaceutical Sciences, Università degli Studi di Bari Aldo Moro, Italy c National Institute for Nuclear Physics (INFN), Bari Section, Italy d Translational Biomedicine and Neuroscience (DiBraiN) Department, Università degli Studi di Bari Aldo Moro, Italy e ENEA, Italian National Agency for New Technologies, Energy and Sustainable Economic Development, Italy

* Corresponding author. E-mail address: niloofar.kheirkhahan@uniba.it * Corresponding author. E-mail address: niloofar.kheirkhahan@uniba.it

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the Conference 2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the Conference

2452-3216 © 2026 The Authors. Published by ELSEVIER B.V. This is an open access article under the CC BY-NC-ND license (https://creativecommons.org/licenses/by-nc-nd/4.0) Peer-review under responsibility of the scientific committee of the Conference 10.1016/j.prostr.2026.06.005