Research on multilevel information loss of the sharing process for safety information

To reveal the mechanism of information loss in the flow of safety information, and to derive an evaluation method for describing this information loss, this paper analyzes the flow of safety information based on research in safety informatics and cognitive psychology. Theoretical analysis shows that the flow of safety information can be divided into four stages: transformation, transmission, perception, and cognition. This paper describes a simplified model of the flow of safety information based on these four stages. Then, the concept of adaptive subjects is introduced, and the sources and losses of safety information are explored. In addition, a model of safety information flow loss is constructed. This model is used to analyze the connection between the information loss at each stage of the sharing process, and then a “ladder hierarchical” model for the loss of safety information is developed. Comprehensive analysis of this ladder hierarchical model of safety information leads to a formal mathematical model of safety information loss. Finally, according to the various development stages of the safety information sharing process, four key factors that affect the multilevel information loss of the safety information sharing process are extracted by the hierarchical method.