Behrouz Alizadeh Savareh, Mohsen Mahdinia, Samira Ghiyasi, Jamshid Rahimi, Ahmad Soltanzadeh,
Volume 5, Issue 3 (9-2019)
Abstract
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 (2007-2018) was analyzed and modeled. Data analysis was performed based on feature selection using Pearson's χ2 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 decision-making 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.
Ahmad Soltanzadeh, Iraj Mohammadfam, Ahmad Ghorbani, Mohsen Mahdinia,
Volume 8, Issue 2 (6-2022)
Abstract
Background: Organizational environments are constantly changing; hence organizations must adapt to such changes. Therefore, this study aimed to design an HSE management change model for civil engineering projects.
Method: This cross-sectional study was conducted in 2019 based on the Delphi method. The participants were 39 HSE experts working on Iran’s large civil engineering project. The instrument of the study was a questionnaire consisting of 40 necessary measures based on the Penfold’s change model. The Delphi method employed in this study comprised three rounds and was carried out based on the 5-stage Penfold’s change model (current situation, analysis, understanding, planning, execution, and keeping changes).
Results: The results of the Delphi study showed that from 60 items after the three rounds, 57 proposals were approved by the specialists. Also, 10 out of 15 recommendations were taken by experts in the change management model.
Conclusion: The final change management model in this study included 38 items for the five stages of change management (based on the integration of 67 items). Results indicated that this model can be used to reduce the consequences of changes affecting occupational safety, health, and the environment.
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