A Methodology to Model Human and Organisational Errors on Offshore Risk Analysis

This paper aims to contribute to offshore risk analysis by proposing a methodology to model causal relationships focusing on human and organisational errors. The proposed methodology uses James Reason\´s "Swiss cheese" model to form a generic offshore risk analysis framework and tailors Bayesian Network (BN) to fit into the framework to construct a causal relationship model. A case study of the collision risk between a Floating Production, Storage and Offloading (FPSO) unit and authorised vessels caused by human and organisational factors (HOFs) during operations is used to illustrate the application of the proposed methodology. This paper shows that James Reason\´s "Swiss cheese" model and BN can be jointly used in offshore risk analysis