Quantitative Analysis of Safety Risks and Relationship with Delayed Project Completion Times

Abstract

Dynamic work environments in construction and civil infrastructure sectors remain susceptible to safety risks. Although previous research has resulted in improvements, there is currently a gap in measuring temporal impacts of safety risks quantitatively. Precise modeling of potential delays caused by safety incidents is vital for efficient management of risks and making informed decisions on project contingency. Toward this aim, the current research adopts a nondeterministic modeling method to simulate and quantify safety incidents and find correlations with project delays. Using a deductive approach, three research questions were formulated, and investigations conducted on Australian data collected from 2016 onwards. Quantitative impacts of safety risks on project completion times were numerically measured. Furthermore, safety risks were ranked based on their significance of temporal impacts on project performance. This paper contributes to the theory of safety management by developing a nondeterministic method to model impacts of safety risks at both industry and project levels. Practical contributions and outcomes can facilitate using machine learning methods to plan proportionate time buffers to address safety risks.

Risk Management Practices and Performance of Road Construction Projects in Kilifi County, Kenya

“…Project risk analysis involves qualitative and quantitative analysis (Alkaissy, Arashpour, Li, Alaghmand, & Nezamian, 2022). The qualitative risk analysis process is the process of integrating and implementing (Nakayama et al, 2022), while the quantitative risk analysis is the process of numerically analyzing the combined effect of identified project risks on overall project objectives (Alkaissy et al, 2022).…”

“…Project risk analysis involves qualitative and quantitative analysis (Alkaissy, Arashpour, Li, Alaghmand, & Nezamian, 2022). The qualitative risk analysis process is the process of integrating and implementing (Nakayama et al, 2022), while the quantitative risk analysis is the process of numerically analyzing the combined effect of identified project risks on overall project objectives (Alkaissy et al, 2022). The qualitative risk analysis is the process performed to prioritize project risks for further analysis or action by assessing their probability of occurrence and impact in a project (Hickson & Owen, 2022).…”

Risk Management Practices and Performance of Mining Projects in Kwale County, Kenya

“…Project risk analysis involves qualitative and quantitative analysis (Alkaissy, Arashpour, Li, Alaghmand, & Nezamian, 2022). The qualitative risk analysis process is the process of integrating and implementing (Nakayama et al, 2022), while the quantitative risk analysis is the process of numerically analyzing the combined effect of -179 -…”

“…ISSN 2312-9492 (Online) 2414-8970 (Print). www.strategicjournals.com identified project risks on overall project objectives (Alkaissy et al, 2022). The qualitative risk analysis is the process performed to prioritize project risks for further analysis or action by assessing their probability of occurrence and impact in a project (Hickson & Owen, 2022).…”

The Cost Burden of Safety Risk Incidents on Construction: A Probabilistic Quantification Method

“…Moreover, this study investigates the demographic factors of an employee's age at the time of the incident and whether age influences project cost overruns. This will help to develop focused mitigation strategies to accommodate project cost overruns and their substantial consequences (Alkaissy, Arashpour, Li, Alaghmand, & Nezamian, 2021). Therefore, the secondary driver supplementing this research is: How sensitive are project cost overruns to different worker age groups involved in construction projects?…”