Page 25 - Design Considerations Based on Quantitative Risk Assessments for Slopes
P. 25

Frequency vs Fatality Chart




               Individual Risk Criteria






                ▪ Australian Geomechanics Society (AGS), 1999 individual

                     risk criteria.



                                Situation                           Suggested tolerable risk for loss of life



                 Existing engineered slopes                     10-4 /annum person most at risk



                                                                10-5 /annum average of person at risk



                 New engineered slopes                          10-5 /annum person most at risk



                                                                10-6 /annum average of person at risk




                 Note: Acceptable risks are usually considered to be one order of

                 magnitude smaller than the tolerable risks.
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