Ahmad Soltanzadeh - Department of Occupational Health & Safety Engineering, Faculty of Health, Qom University of Medical Sciences, Qom, Iran.
Iraj Mohammadfam - Department of Ergonomics, Health in Emergency and Disaster Research Center, University of Social Welfare and Rehabilitation Sciences, Tehran, Iran.
Ahmad Ghorbani - Department of HSE, Najaf-Abad Branch, Islamic Azad University, Esfahan, Iran.
Mohsen Mahdinia - Department of Occupational Safety & Health Engineering, Faculty of Health, Research Center for Environmental Pollutants, Qom University of Medical Sciences, Qom, Iran.

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 ۲۰۱۹ based on the Delphi method. The participants were ۳۹ HSE experts working on Iran’s large civil engineering project. The instrument of the study was a questionnaire consisting of ۴۰ 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 ۵-stage Penfold’s change model (current situation, analysis, understanding, planning, execution, and keeping changes). Results: The results of the Delphi study showed that from ۶۰ items after the three rounds, ۵۷ proposals were approved by the specialists. Also, ۱۰ out of ۱۵ recommendations were taken by experts in the change management model. Conclusion: The final change management model in this study included ۳۸ items for the five stages of change management (based on the integration of ۶۷ items). Results indicated that this model can be used to reduce the consequences of changes affecting occupational safety, health, and the environment.

Management of change model, health, security, environment, Delphi method