- Written by a committee of safety professionals, this book creates a foundation document for the development and application of risk tolerance criteria
- Helps safety managers evaluate the frequency, severity and consequence of human injury
- Includes examples of risk tolerance criteria used by NASA, Earthquake Response teams and the International Maritime Organization, amongst others
- Helps achieve consistency in risk-based decision-making
- Reduces potential liabilities in the use of quantitative risk tolerance criteria through reference to an industry guidance document
Preface xiii
Acknowledgments xv
List of Tables xix
List of Figures xxi
Acronyms and Abbreviations xxv
Glossary xxix
1 INTRODUCTION 1
1.1 What is Risk? 1
1.2 Scope of these Guidelines 7
1.3 Objectives of these Guidelines 8
2 FUNDAMENTAL CONCEPTS OF RISK ASSESSMENT AND RISK CRITERIA 11
2.1 A Brief History of Risk Assessment 11
2.2 The Qualitative Approach to Risk Assessment 15
2.3 Technical Aspects of QRA 21
2.4 Quantitative Risk Criteria 31
2.5 The Role of QRA and Risk Criteria 37
2.6 Risk Tolerance as a Function of Societal Values 39
2.7 Definition and Applications of the As Low as Reasonably Practicable (ALARP) Principle 44
2.8 Uncertainty and Its Impact on Risk Decision Making 46
3 LEARNING FROM REGULATORY PRECEDENTS 49
3.1 Why Study Risk Criteria? 49
3.2 The Evolution of Risk Criteria in the UK 51
3.3 lƒ<