The safety assessment system based on virtual networked environment for evaluation on the hazards from human errors during decommissioning of nuclear facilities

•A system for evaluation on the hazards from human errors during decommissioning of nuclear facilities.•Real-time changing direction of workers in a scenario.•Real-time measuring personal exposure dose and collective exposure dose.•A tool for improving familiarization of a workplace and for preventing workers from accidents.

This paper is intended to suggest a system for evaluation on the hazards from human errors during decommissioning of nuclear facilities. The system was developed under virtual networked environment. The innovative features are real-time changing direction of workers in a scenario and real-time measuring personal exposure dose and collective exposure dose. The system will be expected to be utilized as a training tool for improving familiarization of a workplace and for preventing workers from accidents.