Thematic Network on Safety and Reliability of Industrial Products, Systems and Structures
 sexta-feira, 2 de maio de 2025 

  Meetings          
 
3rd General SAFERELNET Meeting
in conjunction with the
Workshop on Acceptable Safety Levels, and the
Workshop on Integration of Risk and Reliability
Copenhagen, May 19 - 21, 2003

Day 3: Wednesday, 21st May

Workhop on Integration of Risk and Reliability (WP4)

Organizing Committee M. Faber
E. Kragh
N. Shetty
M. Pedrali
C. Guedes Soares
A. Raposo

The Workshop is being organised to present and discuss the approaches for the integration of Quantitative Risk Analysis (QRA), Structural Reliability Analysis (SRA) and Human & Organisational Factor Analysis (H&OFA). The conventional application of QRA relies on historical failure data for system components, which are sometimes combined with fault-tree and event-tree techniques to produce the probability of outcome events. Methods of structural reliability analysis are used which predict the failure probabilities using mechanical models for resistance and loading combined with probability distributions for the uncertain material properties and loads. Both the QRA and SRA techniques do not explicitly take account of the contribution of human and organisational factors on accident causation and its consequences.
In general, a total risk analysis of a major infrastructure or industrial system needs to take account of all the sources of uncertainty and risks from all hazard sources. This would need an integration of the QRA, SRA and H&OFA techniques. These techniques have hitherto been developed in isolation and do not have a consistent theoretical/philosophical basis. The objective of this workshop is to discuss this issue and identify approaches for the effective integration of these techniques.
Contributions in the form of presentations or discussions are invited on the following topics:
 • Key differences between the QRA, SRA & H&OFA techniques
 • Applications where an integrated approach would be beneficial
 • Previous examples of application of the integrated approach
 • Theoretical bases for integration of the techniques
 • Steps to be taken for promoting the integration of approaches

Time Schedule
09:00 – 09:10 Introduction to the Workshop on Integration of Risk and Reliability
09:10 – 09:40 Key issues for the integration of Quantitative Risk Analysis and Structural Reliability Analysis
N.K. Shetty and A. Hessami - W.S.Atkins, United Kingdom
09:40 – 10:10 H &O Factors in Risk and Reliability Assessment
Mauro Pedrali – D’Appolonia, Italy
10:10 – 10:30 Coffee Break
10:30 – 11:00 Human and Management Factors in Probabilistic Risk Analysis: A Review I
M. Faber – ETHZ, Switzerland, E. Kragh - COWI, Denmark
11:00 – 11:30 Human and Management Factors in Probabilistic Risk Analysis: A Review II
H.B. Andersen, I. Kozine – RISØ, Denmark
11:30 – 12:00 Discussion of State of the Art as presented, identification of gaps
12:00 – 13:00 Lunch
13:00 – 13:30 Examples of methods for integration:
Semi-quantitative method with Safety Barrier Diagrams. E. Kragh – COWI, Denmark
13:30 – 14:15 Introduction to Bayesian Probabilistic Nets.
Technical risk assessment of decommissioning options using Bayesian Probabilistic Nets
I. Kroon – COWI, Denmark
14:15 – 14:45 A Practical Example of Integration of Risk and Reliability Techniques in the Nuclear Industry,
Elod Holló – VEIKI, Hungary
14:45 – 15:30 Discussion, conclusion on future work on integration
15:30 Close of Workshop
15:40 – 16:00 Coffee Break
16:00 – 18:00 Meeting of the Steering Committee
 
 
   
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