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Published on: August 7, 2017
Modelling vicious networks with P-graph causality maps.
Raymond R Tan1, Kathleen B Aviso1, Angelyn R Lao2
1Chemical Engineering Department, De La Salle University, 2401 Taft Avenue, 0922 Manila, Philippines.
This study extends P-graph causality maps to analyze adverse causal networks, identifying key components for deactivation. The methodology was applied to the Bhopal disaster, offering insights for preventing future industrial accidents.
Area of Science:
- Systems analysis
- Causal network analysis
- Industrial safety
Background:
- P-graph causality maps offer a systematic method for analyzing complex causal chains.
- The original methodology focused on achieving desirable outcomes.
- Analysis of adverse causal networks is crucial for preventing industrial disasters and addressing sustainability issues.
Purpose of the Study:
- To extend the P-graph causality map methodology for analyzing vicious (adverse) causal networks.
- To identify keystone objects and mechanisms within adverse networks for deactivation.
- To provide a framework for understanding and mitigating industrial accidents and sustainability challenges.
Main Methods:
- Utilizing P-graph's bipartite representation (O-type nodes for objects, M-type nodes for mechanisms).
- Employing maximal structure generation to assemble complete causal networks.
- Applying solution structure generation to enumerate all feasible causal networks.
Main Results:
- The extended methodology successfully identifies critical components in adverse causal networks.
- Analysis provides insights into deactivating vicious networks by removing key elements.
- The approach was validated through an ex post analysis of the 1984 Bhopal disaster.
Conclusions:
- The extended P-graph causality map methodology is effective for analyzing and intervening in adverse causal networks.
- This approach can enhance industrial safety and inform sustainability strategies.
- Further applications in environmental and societal risk management are promising.
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