The National Academy of Sciences, Committee on Geological and Geotechnical Engineering (COGGE) Spring 2025 Meeting presents “Developing Consistent Geohazard Parameters for Infrastructure System Design Against Extreme Events.” This meeting of the Committee on Geological and Geotechnical Engineering (COGGE) considers “how methods to identify geohazard design parameters (e.g., deterministic and probabilistic) may or may not be contributing to the confidence in infrastructure performance at the component and system level in the face of extreme events.”
Lifeline infrastructure comprises geographically distributed and widely dispersed systems that traverse various terrains and geological environments. As a result, these infrastructure systems are susceptible to multiple geohazards, such as earthquakes, floods, and severe weather. The resilience of these infrastructure systems during extreme events is crucial, as they provide essential services to communities. Ensuring confidence in system performance after extreme events requires three key components:
- Establishing performance criteria and objectives;
- Determining geohazard parameters aligned with those objectives, and;
- Creating design criteria that address these parameters while maintaining acceptable risk levels.
However, the absence of a standardized framework for defining geohazard parameters may result in the inappropriate application of the same parameters to different risks within a system or cause the inconsistent application of design parameters, which could misrepresent performance expectations.
About the Committee on Geological and Geotechnical Engineering.
“The Committee on Geological and Geotechnical Engineering (COGGE), established in 2001, is the focal point within the Board on Earth Sciences and Resources for scientific, technical, and public-policy issues about the engineering applications of Earth Sciences. The committee’s scope encompasses Earth processes and materials, including rock and soil mechanics, and focuses on safe and responsible human development, risk assessment, and mitigation of natural and anthropogenic hazards. In addition, the committee provides a forum for discussion among academic and professional groups, government agencies, and private industry to enhance national and international cooperation and exchange of information.”
(Source: www.nationalacademies.org/our-work/committee-on-geological-and-geotechnical-engineering)
© 2025 National Academy of Sciences. All rights reserved.
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