Building Effective Bowties Through Various VAP Cycle Stages to Operationalize Them for Frontliners for Effective Barrier Management

Process safety excellence is achieved when design integrity, technical integrity, and operational integrity are demonstrated for various barriers throughout the lifecycle of an asset. The Bowtie diagram is instrumental in visualizing these barriers and understanding the causal relationships between threats and consequences. The Bowtie diagram and its analysis play a significant role in managing Major Accident Hazards (MAH) under the Control of Major Accident Hazards (COMAH) regulations in the oil and gas industry. It is a highly effective tool when developed comprehensively and tailored to specific facility or plant operations. The Bowtie diagram not only provides a visual representation of the causes and potential consequences of hazardous material releases or events but also serves as an effective tool in demonstrating technical and operational integrity for robust process safety governance. Building comprehensive, location-specific Bowties requires meticulous effort and time, but it can deliver effective barrier management in terms of the 3Ps: Plant (hardware and systems), Processes (critical processes and procedures), and People (critical positions and competencies). The substantial effort and time needed to develop these diagrams pose a key challenge in comprehensive Bowtie development and analysis.