The following post highlights the National Academy of Sciences, Committee on Geological and Geotechnical Engineering (COGGE) Spring 2025 Meeting “Developing Consistent Geohazard Parameters for Infrastructure System Design Against Extreme Events.”
Lifeline infrastructure comprises complex and distributed networks across various geographic terrains and geologic settings, causing infrastructure assets to be susceptible to numerous geohazards, such as earthquakes, floods, and other severe weather conditions. Given the critical services these systems provide to communities, ensuring resilience during extreme weather events is crucial. Confidence in system performance post-extreme events hinges on three key factors: (1) establishing performance criteria and objectives, (2) defining geohazard parameters that align with these objectives, and (3) developing design criteria that address these parameters with acceptable risk levels.
The absence of a consistent planning and engineering framework for defining geohazard parameters measurably increases the probability of improperly applying the same parameters to different risks or inconsistently applying design parameters across a system, leading to inaccurate performance projections. The National Academy of Sciences, Committee on Geological and Geotechnical Engineering (COGGE) Spring 2025 meeting evaluates how deterministic and probabilistic methods for identifying geohazard design parameters enhance — or conversely undermine — confidence in infrastructure performance at both the component and system levels during extreme weather events.
About the National Academy of Sciences, Committee on Geological and Geotechnical Engineering (COGGE)
“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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