Increasing Human Reliability in the Chemical Process Industry Using Human Factors Techniques

A comprehensive hazard analysis consists of first understanding different factors that would lead to an unwanted event. This paper addresses this issue by using a risk analysis framework and it is extended to capture human and organization factors that influence the operator performance in order to identify the actual error producing conditions that lead to basic events. The paper describes a methodology that will be used in the process hazard analysis to introduce the design/operator mismatches and management deficiencies. In this method the most important error producing conditions (EPCs) associated with a particular human error are identified and analysed qualitatively. These EPCs will then be quantified to determine how much they influence human reliability.