Integrated system for managing risks to road networks exposed to extreme natural events in Chile.

Authors

  • Alondra Chamorro Departamento de Ingeniería y Gestión de la Construcción, Escuela de Ingeniería, Pontificia Universidad Católica de Chile, Santiago, Chile
  • Tomás Echaveguren Departamento de Ingeniería Civil, Universidad de Concepción, Concepción, Chile.
  • Manuel Contreras-Jara Departamento de Ingeniería Civil, Universidad de Concepción, Concepción, Chile.
  • Carlos Pattillo Centro de Investigación para la Gestión Integrada del Riesgo de Desastres (CIGIDEN), ANID/FONDAP/1522A0005 Santiago, Chile
  • Marta Contreras Centro de Investigación para la Gestión Integrada del Riesgo de Desastres (CIGIDEN), ANID/FONDAP/1522A0005 Santiago, Chile.
  • Natalia Nieto Centro de Investigación para la Gestión Integrada del Riesgo de Desastres (CIGIDEN), ANID/FONDAP/1522A0005 Santiago, Chile.
  • Eduardo Allen Department of Civil and Environmental Engineering, The University of Auckland, Auckland, Nueva Zelanda.
  • Gustavo Jiménez-Ramos Departamento de Ingeniería Civil, Universidad de Concepción, Concepción, Chile.
  • Hernán de Solminihac Centro Latinoamericano de Políticas Económicas y Sociales (CLAPES-UC), Santiago, Chile.

Keywords:

Risk management system, Resilience, Natural events, Road network

Abstract

Given the importance of the road network for a country's development and its critical nature in terms of connectivity, it has become increasingly relevant to incorporate risk management into traditional road network management systems. Risk Management Systems are a valuable tool for estimating potential losses from natural phenomena, evaluating risk reduction strategies, and increasing the resilience of critical infrastructure. The article analyzes the development of SIGER-RV, a tool for risk management of road networks exposed to multiple hazards developed in Chile. The tool was implemented on a web platform based on a Geographic Information System. It is capable of displaying maps of seismic, hydrometeorological, and volcanic hazards, estimating damage to key road network assets using fragility curves, quantifying risk levels based on increases in travel times, prioritizing mitigation strategies based on restoration times and costs, and estimating direct and indirect losses and the social vulnerability of communities exposed to natural hazards. The article includes an application of SIGER-RV on a road network exposed to lahar flows from the Villarrica volcano in southern Chile. It shows that travel time between Villarrica and Pucón increases 20-fold due to bridge failure caused by a Hawaiian-Strombolian eruption.

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Published

2025-12-30

How to Cite

Chamorro, A., Echaveguren, T., Contreras-Jara, M., Pattillo, C., Contreras, M., Nieto, N., … de Solminihac, H. (2025). Integrated system for managing risks to road networks exposed to extreme natural events in Chile. Journal of Construction and Civil Engineering, 13(3), 9. Retrieved from https://rioc.ufro.cl/index.php/rioc/article/view/3407

Issue

Vol. 13 No. 3 (2025): RIOC

Section

Articles

License

Copyright (c) 2026 Alondra Chamorro, Tomás Echaveguren, Manuel Contreras-Jara, Carlos Pattillo, Marta Contreras, Natalia Nieto, Eduardo Allen, Gustavo Jiménez-Ramos, Hernán de Solminihac

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