Safety-barrier diagrams as a safety management tool

Safety-barrier diagrams and “bow-tie” diagrams have become popular methods in risk analysis and safety management. This paper describes the syntax and principles for constructing consistent and valid safety-barrier diagrams. The latter's relation to other methods such as fault trees and Bayesia...

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Bibliographic Details
Published in:Reliability engineering & system safety 2009-02, Vol.94 (2), p.332-341
Main Author: Duijm, Nijs Jan
Format: Article
Language:English
Subjects:
Applied sciences
Exact sciences and technology
Operational research and scientific management
Operational research. Management science
Reliability theory. Replacement problems
Risk analysis
Risk theory. Actuarial science
Safety barriers
Safety management
Safety-barrier diagrams
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Summary:Safety-barrier diagrams and “bow-tie” diagrams have become popular methods in risk analysis and safety management. This paper describes the syntax and principles for constructing consistent and valid safety-barrier diagrams. The latter's relation to other methods such as fault trees and Bayesian Networks is discussed. Important advantages of safety-barrier diagrams as compared to other graphical risk-analysis methods are, firstly, the relative simplicity that supports communication with non-expert stakeholders and, secondly, the focus on deliberately inserted safety systems that supports the management and maintenance of these systems. Safety-barrier diagrams provide a useful framework for an electronic data structure that integrates information from risk analysis with operational safety management.
ISSN:0951-8320
1879-0836
DOI:10.1016/j.ress.2008.03.031