Which formula gives the Total Recordable Incident Frequency (TRIF)?

The Total Recordable Incident Frequency (TRIF) is a critical metric used in safety management to gauge the frequency of workplace incidents. The correct formula for TRIF incorporates all types of incidents that might affect workers, including lost time cases, medical aids, and modified work cases.

By summing lost time cases, medical aid cases, and modified work cases, the formula provides a comprehensive measure of all recordable incidents that employees may encounter. This sum is then multiplied by 200,000, which serves to standardize the rate per a set number of exposure hours, allowing for comparisons across different organizations and industries. The division by total employee hours of exposure ensures that the TRIF reflects the actual level of risk experienced by employees in relation to the time they are exposed to potential hazards on the job.

The other choices do not encompass the full scope of recordable incidents or are incorrect in their calculations aimed at measuring the TRIF. Thus, the formula that includes the total of these three types of incidents is essential for accurately tracking and improving workplace safety performance.