Appendix 6

Human Error Probabilities

The following is an overview of the range of human error rates. It must be emphasized that these are broad guidelines. In any particular situation the human-response reliability will be governed by a number of shaping factors which were explained in Chapter 9. They include:

Environmental factors
Physical
Organizational
Personal
Intrinsic error
Selection of Individuals
Training
Experience
Stress factors
Personal
Circumstantial

The following examples are specific assessments for various tasks which were part of site safety studies arried out by the author. ...

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