The accident triangle, also known as Heinrich's triangle or Bird's triangle, is a theory of industrial accident prevention. It shows a relationship between serious accidents, minor accidents and near misses.

2025年1月12日 · While influential, the Heinrich/Bird safety pyramid has become a safety myth that oversimplifies accident causation. Its assumptions about incident ratios and predictive validity are no longer supported by evidence. By relying on this outdated model, organizations risk overlooking the systemic factors that drive major accidents.

海因里希法则（Heinrich's Law）又称“海因里希安全法则”、“事故三角”或“海因法则”，是美国著名安全工程师海因里希（Herbert William Heinrich）提出的工业事故预防理论。

De driehoek van Heinrich, piramide van Heinrich, veiligheidspiramide, ongevalsdriehoek of ijsbergmodel is de verhouding die zou bestaan tussen ongevallen zonder letsel, ongevallen met licht letsel en ongevallen met ernstig letsel en dodelijke ongevallen.

2024年12月15日 · The Safety Pyramid, also known as the Accident Triangle or Heinrich’s Safety Triangle, is one of the most discussed and debated workplace safety concepts. First introduced by Herbert Heinrich in the 1930s, the model suggests a correlation between near-misses, minor injuries, and major incidents.

2018年1月1日 · Heinrich’s pyramid, which postulates that the severity distribution of occupational accidents is relatively constant, is one of the main tools for management of occupational safety. However, existing evidence suggests that decreases in minor accidents have not always been followed by similar decreases in serious and fatal accidents.

2019年10月23日 · Heinrich’s resultant theory is often depicted in a pyramid or a triangle. It is based upon the need to eliminate non-injury incidents in order to eliminate minor and serious injuries. By focusing on preventing the 300 incidents that occur for every serious injury we could reach the goal of injury elimination.

Una conclusión del trabajo de Heinrich es que el 95% de los accidentes en el lugar de trabajo son causados por «actos inseguros». Heinrich llegó a esta conclusión después de revisar miles de informes de accidentes completados por supervisores y entrevistar a estos supervisores hasta diez años después de los incidentes relevantes.

2024年3月21日 · The safety pyramid, sometimes called the safety triangle, is a pictorial representation of a concept called Heinrich’s Law, developed by H. W. Heinrich. Heinrich, an employee of the Traveler’s Insurance Company in the 1930s, published a series of groundbreaking theories on health and safety at work.

Heinrich’s safety pyramid shows us the different levels of safety incidents, beginning with unsafe acts and going all the way up to the worst-case scenario, death. There are many discussions on the validity of this pyramid, but for today’s purposes please focus only on the base of the pyramid,