Tolerance Thresholds

FAID Quantum analysis results can assist organisations and managers in understanding the fatigue exposure of different hours of work. The model can support fatigue risk management decision-making by revealing higher risk times when controls/treatments should be targeted, or limiting the fatigue exposure of work hours for tasks or roles that are more sensitive to fatigue-related impairment and/or have significant consequence in the event of a fatigue-related error.

Hours of work-related fatigue exposure can be limited by allocating work hours within, and auditing/reviewing against, FAID & KSS benchmark figures. These benchmarks are referred to as KSS Tolerance Level (KTL) & FAID Score Tolerance Level (FTL). Target Compliance against these Tolerance Levels is set at 98%.

Tolerance levels may be set relevant to a specific task or role. A lower KTL/FTL may be set for a higher risk task or role, and a higher KTL/FTL may be set for a lower risk task or role.

Tolerance Levels and Target Compliance percentages are usually determined by an organisation after carrying out a Fatigue Hazard Analysis (FHA) risk assessment for a specific role. That is, a risk assessment which reviews the hazards of a role when fatigue is present.

To find out more about setting appropriate Tolerance Levels and Fatigue Hazard Analysis, read Establishing Fatigue Tolerance Levels.

Tolerance Levels can be set and changed by the group admin/manager. These can be accessed via the ‘Manage’ button, under ‘Analysis Settings’ tab.