Designing a quantitative safety checklist for the construction phase of ongoing projects in petrochemical plants

Background: One of the challenges in construction is the occurrence of numerous accidents. In this regard, risk assessment can play an important role in reducing accidents. The aim of this study was to prepare comprehensive and quantitative checklists to determine the potential hazards in the construction phase. Materials and Methods: The present descriptive and analytical study was carried out on petrochemical projects in the south of Iran in 2014. After the inspection of more than 50 construction projects, two types of technical and managerial checklists were designed. The managerial and technical checklists were designed with seven and 32 major subjects, respectively. Finally prepared checklist and ET&BA method were compared in term of their risk identification capability. Results: The checklist and ET&BA methods, respectively, identified 300, 75, 125, and 48, and 107, 25, 12, and 0 risks related to hardware, design, mismanagement, and human error. Conclusions: The checklist method can identify and assess human errors, while the ET&BA method cannot. Moreover, this method was more efficient than the ET&BA technique in identification and assessment of hardware-related, design-related, and managerial risks. Moreover, the duration and cost of implementation of checklist method were significantly lower than ET&BA method. This technique can be introduced as a quantitative risk assessment method in construction phases of projects and its weaknesses can be improved by future studies.