Comparative Injury and Fatality Risk Analysis of Building Trades

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Occupational injury and fatality risk analysis was performed on 16 building trades in the study reported herein. The approach was based on defining risk fundamentally as the product of probability (frequency) and severity, and using the risk plane concept to evaluate and rank the trades in terms of nonfatal injury rates. A parameter named index of relative risk was then used for fatality rate based ranking, and the results separately obtained from these analyses were integrated into a combined risk score for arriving at final rankings. Bureau of Labor Statistics data was used in the study. The risk analysis methodology included both frequency and severity considerations associated with nonfatal injuries. It was observed that simultaneous consideration of frequency and severity gives more comprehensive results than performing risk analysis based exclusively on either frequency or severity. The findings of the study indicated that ironworkers and roofers were the highest risk trades. The information derived from the methodology presented in this paper should be particularly valuable for risk managers, legal and liability experts, and project managers.