TRIR formula?

TRIR formula?

• A. (# of cases of injury and illness x 200,000) / (hours worked by all employees in a given year)
• B. (# of injuries) / (days absent)
• C. (Total pay losses) / (hours worked)
• D. (Cases x hours) / 200,000

Answer: (A)

TRIR stands for Total Recordable Incident Rate and is used to compare safety performance by normalizing injuries and illnesses to hours worked. The standard calculation takes the number of recordable injuries and illnesses and multiplies it by 200,000, then divides by the total hours worked by all employees in the period. The 200,000 base reflects 100 full-time employees working 2,000 hours each in a year, which gives a consistent rate per 100 full-time equivalents. This makes it possible to compare safety performance across different sites and timeframes. The other formulations don’t produce this standardized rate: they use different numerators or denominators (such as days absent or pay losses) or place hours in the wrong part of the fraction, so they don’t reflect the recognized TRIR metric.

TRIR stands for Total Recordable Incident Rate and is used to compare safety performance by normalizing injuries and illnesses to hours worked. The standard calculation takes the number of recordable injuries and illnesses and multiplies it by 200,000, then divides by the total hours worked by all employees in the period. The 200,000 base reflects 100 full-time employees working 2,000 hours each in a year, which gives a consistent rate per 100 full-time equivalents. This makes it possible to compare safety performance across different sites and timeframes. The other formulations don’t produce this standardized rate: they use different numerators or denominators (such as days absent or pay losses) or place hours in the wrong part of the fraction, so they don’t reflect the recognized TRIR metric.