The Total Recordable Incident Rate (TRIR) has become a universal metric. For the few that are not familiar with the TRIR calculation, let’s do a brief review. The Total Recordable Incident Rate is a calculation that takes the total number of OSHA Recordable incidents (see here for definition of an OSHA Recordable incident), multiplies that number by a normalizing figure, 200,000 (which represents the total number of hours 100 employees would log in 50 weeks based on a 40-hour work week) and then divides that number by the total hours worked for a site or the aggregation of sites being analyzed.
The calculation outlined above ultimately looks like this: (Number of Recordable Incidents x 200,000)/ Number of hours worked.