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The competency of organizational safety control structure; a framework for evaluation

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Abstract

The latest generation of accident models demonstrate that the root causes of the systemic accidents in complex sociotechnical systems derive from the system’s inefficient organizational safety control structure; the "structure" that has not adapted itself to the under-controlled dynamic system and, consequently, is not able to control system’s hazardous behaviors. Hence, in this paper, a clear approach is presented to evaluate organizational safety control structure’s competency. In this approach, the modelling process of the System Theoretic Process Analysis (STPA) is used to model hierarchical safety control structure; then, Bayesian Belief Net (BBN) is applied for the competency evaluation of the structure. Clearly, a novel procedure is introduced for converting an STPA-based safety control structure to a BBN for achieving some invaluable safety lead indicators via quantitative analysis.

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Authors and Affiliations

  1. Department of Safety Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Science (SBMU), Tehran, Iran

    Ahmad Dehghan Nejad

  2. Department of Health, Safety and Environment, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences (SBMU), Tehran, Iran

    Amirhosein Bahramzadeh

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  1. Ahmad Dehghan Nejad
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  2. Amirhosein Bahramzadeh
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Correspondence to Amirhosein Bahramzadeh.

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Nejad, A.D., Bahramzadeh, A. The competency of organizational safety control structure; a framework for evaluation. Int J Syst Assur Eng Manag 12, 1180–1198 (2021). https://doi.org/10.1007/s13198-021-01373-8

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  • DOI: https://doi.org/10.1007/s13198-021-01373-8

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