Too many incidents
Heinrich’s accident triangle, developed by Herbert William Heinrich in 1931, suggests for every 300 near misses in the workplace, 29 minor injuries will occur. For every 29 minor injuries, there will be one serious injury, according to Heinrich’s theory. The purpose of the triangle is to demonstrate the importance of addressing near misses in the workplace to prevent minor and serious injuries. (U.S. Air Force graphic by Brooke Brumley)