Accident investigation techniques

Introduction

The models used in accident investigation can typically be grouped into three types: sequential, epidemiological, and systemic models. Although the sequential and epidemiological models have contributed to the understanding of accidents, they are not suitable for clarifying the complexities and dynamics of modern sociotechnical systems. In these systems, the interactions and events are connected in complicated ways, and standard safety engineering techniques alone are not sufficient to comprehend the accident causation. When analysing major accidents in process industries, a more systematic and professional model is needed than when supervisors and workers…