PSI - Issue 84

Available online at www.sciencedirect.com

ScienceDirect

Procedia Structural Integrity 84 (2026) 890–897

III Fabre Conference: Existing Bridges, Viaducts, and Tunnels: Research, Innovation, and Applications Managing tunnels on a large-scale highway network – ARGO a Tunnel Management System Antonio Sannino a, *, Daniele Di Fiore b , Matteo Malossi c ,Fabio Visioli a , Paolo Anfosso a

a First affiliation, Address, City and Postcode, Country b Second affiliation, Address, City and Postcode, Country

© 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: inspection; maintenance; asset management; tunnel; existing tunnel guidelines; tunnel management system. Abstract The aging of tunnels highlights the critical importance of a systematic and consistent approach to inspection, refurbishment, and safety management, in line with established asset management best practices. This paper presents an overview of the Tunnel Asset Management System (ARGO) developed by Autostrade per l’Italia S.p.A. (ASPI) and its subsidiary Movyon, to oversee a network of 597 highway tunnels spanning 365 kilometers. The ARGO system effectively addresses large-scale maintenance operations, involving more than 2,500 site inspections annually. It schedules regular inspections and laser scanner surveys, guided by risk classification and regulatory requirements. Data collected from visual inspections and laser scanner surveys is integrated into the system's database. Advanced data analysis techniques, including image processing and point cloud analysis, are employed to detect defects, assess their severity, and prioritize necessary maintenance. In addition, ARGO manages and supports the entire process required for compliance with the Italian guidelines for the safety assessment and management of existing tunnels, ensuring consistency, traceability, and alignment with national regulatory frameworks.

* Corresponding author. E-mail address: sanninoantonio90@gmail.com

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.2026.06.114