United States Department of Transportation
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TRIS Online Accession Number:01660099
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Edition:Final, April 2013 to September 2017
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Abstract:This report presents the outcome from a multi-year research study to incorporate a risk management framework for the Alaska Department of Transportation & Public Facilities Geotechnical Asset Management (GAM) Plan. The GAM Plan was developed by Paul D. Thompson (Thompson, 2017). Concurrently to this work, Landslide Technology has completed a concurrent GAM Methods Study. Throughout the GAM plan development, risk based asset management concepts have been proposed and progressed in parallel to the Methods Study and GAM Plan. The concepts include estimating risk exposure from geotechnical assets using the existing inventory and condition data for unstable slopes, retaining walls, and material sites; or ongoing frequency and magnitude data captured in an event tracker. This document presents the development of these concepts for the incorporation of practice-ready, risk based geotechnical asset management. The work includes identifying risks from geotechnical assets based on asset management performance objectives, approaches for incorporation of risk into the GAM program; and methods to evaluate risk management options using benefit-cost and life-cycle investment analysis. Risk-based asset management allows the department to measure risk from geotechnical assets based on risks to safety performance, mobility/traveler impacts, and direct financial consequences to the department.
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