ADVANCES IN HUMAN RELIABILITY-ANALYSIS METHODOLOGY .1. FRAMEWORKS, MODELS AND DATA

This paper, in two parts, summarizes some of the advancements made in the area of human reliability analysis (HRA) in the past decade. The paper focuses on the HRA program sponsored by the Electric Power Research Institute (EPRI) since 1982 as part of an effort to better understand the role of operators in safe operation of nuclear power plants (NPPs) and advance the state-of-the-art in HRA. Many technical reports have been published and numerous papers have been presented in national and international conferences on the various EPRI HRA projects. This paper is an attempt to summarize a decade of research in this area with an emphasis on recent advancements made towards development of a simulator-based HRA methodology using data from NPP simulators. HRA frameworks, models, data and computer codes are discussed, and areas for further research are pointed out. Part I herein covers the frameworks, models and data. Part II of the paper (see this issue, pp. 57-66) discusses the PC-based software developed to facilitate the process of simulator data collection and analysis as well as the assessment of human reliability.