Quality Checks Logit Human Reliability (LHR): A New Model to Evaluate Human Error Probability (HEP)
Table 4
GTTs of the control room operator.
N°
GGT
K24 (t = 24 h)
λ [1/h]
µ (h)
σ (h)
A5
Judgment needed for appropriate procedure to be followed, based on interpretation of alarms/indications, situation covered by training at appropriate intervals.
0.0100
4.188·10−4
2387.98
1004
A6
Completely familiar, well-designed highly practiced, routine task performed to highest possible standards by highly motivated, highly trained, and experienced person, totally aware of implications of failure, with time to correct potential error. Note that this is a special case.
0.0001
4.167·10−6
239988.00
59995
B5
Carry out analysis.
0.0300
1.269·10−3
787.94
413
C2
Identification of situation requiring interpretation of complex pattern of alarms/indications. (Note that the response component should be evaluated as a separate GTT.)
