Change search
ReferencesLink to record
Permanent link

Direct link
Enhanced Bayesian THERP: Experience from HRA method evaluation
KTH, School of Architecture and the Built Environment (ABE), Philosophy and History of Technology, Philosophy.
2010 (English)In: Proceedings of  European Safety and Reliability, ESREL 2010, London: Taylor & Francis Group, 2010Conference paper (Other academic)
Abstract [en]

The Enhanced Bayesian THERP (Technique for Human Reliability Analysis) method uses as its basis the time-reliability curve introduced in the Swain’s human reliability analysis (HRA) handbook. It differs from the Swain's Handbook via a transparent adjustment of the time-dependent human error probabilities by use of five performance shaping factors (PSFs): (1) support from procedures, (2) support from training, (3) feedback from process, (4) need for co-ordination and communication, (5) mental load, decision burden. In order to better know the characteristics of the Enhanced Bayesian THERP from a more international perspective, the method has been subject to evaluation within the framework of the international “HRA Methods Empirical Study Using Simulator Data”. Without knowledge of the crews’ performances, several HRA analysis teams from different countries, using different methods, performed predictive analyses of four scenarios. This paper gives an overview of the method with major findings from the benchmarking. The empirical comparison gives confidence that the time reliability curve is a feasible and cost effective method to estimate human error probabilities when the time window is well defined and relatively short. The comparison of empirical observations with predictions was found as an useful exercise to identify areas of improvements in the HRA method.

Place, publisher, year, edition, pages
London: Taylor & Francis Group, 2010.
National Category
URN: urn:nbn:se:kth:diva-90797OAI: diva2:506551
Reliability, Risk and Safety, ESREL 2010, 5-9 September 2010, Rhodes, Greece
QC 20120410Available from: 2012-02-29 Created: 2012-02-29 Last updated: 2012-04-10Bibliographically approved

Open Access in DiVA

No full text

Search in DiVA

By author/editor
Holmberg, Jan-Erik
By organisation

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 66 hits
ReferencesLink to record
Permanent link

Direct link