The Haddon Matrix is a commonly used modeling tool in the safety/injury prevention field, developed by William Haddon in 1970. It consists of a grid with three rows and three or four columns.
The rows represent different phases of an accident or injury:
The columns represent different influencing factors:
- Environment (sometimes split into physical environment and social or socio-economic environment)
Here’s an example from Wikipedia on vehicle and road safety:
|Human Factors||Vehicles and Equipment Factors||Environmental Factors|