Accident Modeling in Small-scale Construction Projects Based on Artificial Neural Networks

Abstract

Journal of Human, Environment, and Health PromotionJournal homepage: www.zums.ac.ir/jhehp Background: Several factors contribute to accidents in small-scale construction projects (SSCPs). The present study aimed to assess the influential factors in SSCP accidents and introduce a model to predict their frequency. Methods: In total, 38 SSCPs were within the scope of this investigation. The safety index of accident frequency rate (AFR) causing 452 injury construction accidents during 12 years (2007)(2008)(2009)(2010)(2011)(2012)(2013)(2014)(2015)(2016)(2017)(2018) was analyzed and modeled. Data analysis was performed based on feature selection using Pearson's χ 2 coefficient and SPSS modeler, as well as the artificial neural networks (ANNs) in MATLAB software. Results: Mean AFR was estimated at 26.32 ± 14.83, and the results of both approaches revealed that individual factors, organizational factors, training factors, and risk management-related factors could predict the AFR involved in SSCPs. Conclusion:The findings of this research could be reliably applied in the decisionmaking regarding safety and health construction issues. Furthermore, Pearson's correlation-coefficient and ANN modeling are considered to be reliable tools for accident modeling in SSCPs.

Safety Risk Factors for Tower Cranes Used by Small and Medium-Scale Contractors on Construction Sites

“…In Saudi Arabia, a large proportion of the local construction contractors are SMSCs. As evidenced in developed countries, the safety performance of SMSCs is lower than that of larger construction companies [15]. When faced with issues like scarcity of project resources, the SMSCs are not likely to provide adequate funds for managing construction safety [14].…”

“…When faced with issues like scarcity of project resources, the SMSCs are not likely to provide adequate funds for managing construction safety [14]. Alizadeh [15] observed that SMSCs usually have a safety plan and safety professional on board, not because the companies have a real safety commitment. Still, for the reason that top management feels that it is an essential evil.…”