A Popular Systemic Accident Model in China: Theory and Applications of 24model

•The systemic 24Model is mainly based on the Domino Theory and Swiss Cheese Model.•The theoretical evolution of the 24Model and its applications are presented.•24Model can be applied to intelligent accident analysis with its precise definitions.•The results of accident analysis were used to develop a safety training system.•A quantitative measurement system of safety culture was designed using 24Model.