For many years there has been increasing concern about the effects
of human error in complex system safety and reliability. This concern
has been increased owing to accidents such as Chernobyl, Bhopal, Herald of Free Enterprise, Three Mile Island and the Kegworth air
disaster. In the vast majority of these accidents, human error has
played a critical role in the events precipitating the accident. Such
accidents can in theory be predicted and prevented by risk assessment,
in particular assessing the human contribution to risk. However, the
collection of human‐error data has proved a difficult field for the past
30 years, and yet industry would benefit from the existence of a robust
human‐error database. Provides therefore a brief historical resume of
past human‐error databases, and discusses data collection and the
inherent problems associated with data‐collection schemes. Goes on to
outline a human‐error database currently being developed at Birmingham
University, and presents information on regularly quantified human‐error
types. Finally, gives a general synopsis of the research and provides a
selection of real human‐error data points.