April 2024

The Heinrich Safety Pyramid and Quality

The Heinrich Safety Pyramid has been used in personnel safety management for near a century.  Based on research done by Herbert Heinrich in the 1930s, it stated that the number of injuries in a workplace increases as the severity of the recorded injury goes down.  In later versions by Frank Bird in the 1960s the ratios were modified to:

1 death:

10 serious accidents

30 minor accidents

600 near misses

Unsafe acts