Flagship publication · Safety Science · 2022

Risk assessment of fatal accidents due to work-at-heights activities using fault tree analysis: Case study in Malaysia

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Figure cropped from the published paper for research communication; full context is available through the DOI.

What the paper contributes

This study reconstructs how fatal falls develop from contributing factors through immediate and root causes. It combines frequency analysis, prioritisation and fault-tree logic using 128 Malaysian fatal cases.

128fatal cases
89.84%inadequate supervision
85.93%PPE not used

Method

Accident narratives were coded into contributing factors, immediate causes and root-cause categories. Those elements were then assembled into fault-tree pathways and ranked using risk and prioritisation matrices.

Main finding

The highest-occurrence causes included inadequate leadership and supervision, failure to use PPE, and inadequate or poorly followed work standards, which recorded an 85.15% occurrence rate.

Practical value

The framework shows not only which causes occur frequently but how they can combine into fatal pathways, helping safety professionals target upstream controls before a near miss becomes a fatal event.