A system dynamics model for behavioral analysis of safety conditions in a chemical storage unit

Abstract

International audienceThis paper aims to develop a system dynamics model in order to formalize causal interdependencies between safety factors (technical, organizational and human). These factors define safety conditions in a complex industrial system. It is a systemic approach founded on the method of system dynamics and the case study is a storage unit for chemical products located in Morocco. System dynamics using VENSIM® software has been applied to assess the safety of the storage unit by modeling the activity of the industrial system. Through simulation, users can define deviant scenarios in order to improve safety of the industrial system and implement managerial tools involving organizational, technical and human factors

A Simplified Approach to Risk Assessment Based on System Dynamics: An Industrial Case Study

“…These phenomena occur in multiple spaces, as well as time scales. In order to understand the risks due to these industrial activities, various phenomena must be simultaneously taken into account . Complex industrial systems must first be modeled before risk assessment methods, such as PRA or bowtie analysis can be applied.…”

A methodology to incorporate organizational factors into individual safety behavior analysis

“…According to the references [2][3][4] [5], the organizational factors were summarized as safety objective, procedures, training, communication, organization and command, safety supervision and safety culture. And the skills and experience, work environment and psychological states are defined as situation factors.…”

“…As is described in section 2, the input variables include 1 C (safety objective), 2 C (procedures), 3 C (training), 4 C ( communication ) , 5 C (organization and command), 6 C (safety supervision) and 7 C (safety culture).…”

“…Peng-cheng Li proposed a method of human reliability analysis (HRA) based on fuzzy Bayesian network (FBN) [4]. And Hafida Bouloiz developed a system dynamics model in order to formalize causal interdependencies safety factors (technical, organizational and human) [5]. The above models analyzed the mechanisms of organizational factors affecting on individual safety behavior effectively, but the uncertainty, interactive relationships and fuzziness of organizational factors are not solved.…”

A critical approach to safety equipment and emergency time evaluation based on actual information from the Bhopal gas tragedy

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