Skip to Main Content
Simplified methods for evaluating road prism stabilityAuthor(s): William J. Elliot; Mark Ballerini; David Hall
Source: In: Eighth International Conference on Low-volume roads : June 22-25, 2003 : Silver Legacy Hotel and Conference Center, Reno, Nev. Transportation research record no. 1819(2). Washington, D.C.: National Academies of Science, Transportation Research Board: 95-100
Publication Series: Miscellaneous Publication
PDF: View PDF (316 KB)
DescriptionMass failure is one of the most common failures of low-volume roads in mountainous terrain. Current methods for evaluating stability of these roads require a geotechnical specialist. A stability analysis program, XSTABL, was used to estimate the stability of 3,696 combinations of road geometry, soil, and groundwater conditions. A sensitivity analysis was carried out to find the most important site-specific variables in estimating slope stability, and two regression equations were developed to predict the factor of safety (FS) for a given road, one with the groundwater below the road fill and one with the groundwater in the road fill. The resulting equations predicted failures on road segments where failures were observed to have occurred. A comparison of the predicted FSs from the regression equations with the FS values predicted by the infinite slope equation showed that both methods predicted similar FSs.
- You may send email to email@example.com to request a hard copy of this publication.
- (Please specify exactly which publication you are requesting and your mailing address.)
- We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
- This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.
CitationElliot, William J.; Ballerini, Mark; Hall, David. 2003. Simplified methods for evaluating road prism stability. In: Eighth International Conference on Low-volume roads : June 22-25, 2003 : Silver Legacy Hotel and Conference Center, Reno, Nev. Transportation research record no. 1819(2). Washington, D.C.: National Academies of Science, Transportation Research Board: 95-100
Keywordsforest roads, stability, failure, slope, soil, groundwater, safety
- Site conditions related to erosion on logging roads
- Cost estimators for construction of forest roads in the central Appalachians
- Forest Road Erosion, Sediment Transport, and Model Validation in the Southern Appalachians
XML: View XML