ABSTRACT
Human errors are often quoted as being the most important cause of accidents and it is therefore essential that we have suitable methods for analyzing human errors and including them in risk analysis. This chapter starts by defining the problem area, defining human errors, and describing ways of classifying human behavior and associated errors. This is followed by a description and discussion of the main steps in a human reliability analysis, from task analysis and human error identification to determining human error probabilities. Three methods for quantifying probabilities are described: THERP, CREAM, and HEART. At the end, some examples of application of human reliability analysis are described.
