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The triangle shows a relationship between the number of accidents resulting in serious injury, minor injuries or no injuries. The relationship was first proposed in 1931 by Herbert William Heinrich in his Industrial Accident Prevention: A Scientific Approach. [1] Heinrich was a pioneer in the field of workplace health and safety.
Accident triangles have been proposed to model the number of minor problems vs. the number of serious incidents. These include Heinrich's triangle [9] and Frank E. Bird's accident ratio triangle (proposed in 1966 and shown above). Many models to characterize and analyze accidents have been proposed, [10] which can be classified by type.
5. The Foundation Of A Major Injury, the 300-29-1 ratios (Heinrich's triangle) is the least tenable of his premises. It is impossible to conceive of incident data being gathered through the usual reporting methods in 1926 in which 10 out of 11 accidents could be no-injury cases.
The Swiss cheese model of accident causation is a model used in risk analysis and risk management. It likens human systems to multiple slices of Swiss cheese , which has randomly placed and sized holes in each slice, stacked side by side, in which the risk of a threat becoming a reality is mitigated by the differing layers and types of defenses ...
A college student lost his three family members after they died in a crash on the Garden State Parkway in New Jersey. The New Jersey State Police tells PEOPLE that David Dryerman, 54, was driving ...
Liza Minnelli has been married and divorced four times, but her first union left her "truly devastated." The entertainer, who famously starred as Sally Bowles in the film version of "Cabaret," is ...
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Triangle Lake and Lake Creek Falls are about an hour’s drive west of the Oregon campus. Lake Creek Falls is a popular destination for swimming and cliff jumping, according to the U.S. Bureau of ...