Understanding Major Accident Hazards and Bowtie Models

Gain insight into the barriers protecting against hazards and explore the bowtie model's impact on safety. Learn about layers of protection, threats, preventative and mitigative barriers using the example of a caged lion scenario. Discover how to build a bowtie diagram to identify hazards effectively.

• Hazards
• Barriers
• Bowtie Model
• Safety
• Protection

scarlette Follow

Uploaded on Aug 13, 2024 | 0 Views

Download Presentation

Please find below an Image/Link to download the presentation.

The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author. Download presentation by click this link. If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.

Presentation Transcript

1. Major Accident Hazards Understanding Barriers and Building Bowties

2. Whats this session all about? Gain a basic understanding of barriers that protect us from hazards Understand the bowtie model Understand the potential impact on safety if these barriers are bypassed or impaired

3. Layers of Protection Process Plant People Hazards

4. Protection from hazards 1. Hazard has the potential to cause harm the release of the hazard / the initial consequence Event 2.

5. Protection from hazards 1. Caged lion Lion escapes 2.

6. Protection from hazards Threats Consequences Preventative barriers Mitigative barriers Caged lion Lion attacks public Cage broken Lion escapes Cage not closed properly Zoo closes (reputational damage)

7. Threats Preventative barriers Caged lion Cage broken Cage design Cage maintenance, inspection & testing Lion escapes Cage not closed properly Self-closing gate Competent zookeeper Power failure (escalating factor) Back-up generator

8. Consequences Mitigative barriers Caged lion Lion attacks public Security surveillance Search plan Dart gun Lion escapes Zoo closes (reputational damage) Prepared spokesperson Press releases Insurance

9. Bowtie diagram Consequences Threats Preventative barriers Mitigative barriers Caged lion Lion attacks public Cage broken Cage design Cage maintenance, inspection & testing Security surveillance Search plan Dart gun Lion escapes Cage not closed properly Zoo closes (reputation al damage) Self-closing gate Competent zookeeper Prepared spokesperson Press releases Insurance Power failure (escalating factor) Back-up generator

10. Build a Bowtie Identify: 1. Hazard a car being driven 2. Event loss of control of car 3. Threats (causes that may produce the event) 4. Consequences (what could happen if the driver lost control) 5. Barriers (preventative & mitigative)

11. Build a Bowtie - Driving a Car? 4 3 Threats Consequences 5 5 Mitigative barriers Preventative barriers Car being driven 1 2