System Dynamics Modeling for Nuclear Security Culture Assessment

A robust organizational culture plays a vital role in upholding nuclear safety and security by shaping individual decision making. Recognizing this significance, international initiatives have focused on fostering nuclear safety and security culture within nuclear facilities. To assess these cultural aspects, various methodologies, including surveys, interviews, document reviews, and observations, have been applied. Nevertheless, the inherent complexity and evolving nature of organizational culture pose challenges in identifying improvement areas and examining policy impacts. This study presents a system dynamics (SD) model to assess nuclear security culture in nuclear facilities that accounts for these cultural dynamics. The proposed SD model is comprised of a causal loop diagram that illustrates feedback loops, such as a policy-work environment, workload-stress, and learning mechanisms…