Calculating Frequency & Severity Rates, Safety Milestone
What is Safety Milestone Recognition?
The safety milestone recognition is an incentive award given to a company that achieved excellent safety performance of having NO LOST TIME ACCIDENTS for a particular period.
SAMPLE DATA
Number of Employees: 47 (all hourly and salaried personnel)
Number of hours per week: 111,935 (50 hours/week)
Number of lost time injuries: 5 (employee unable to work on next scheduled workday)
Number of days lost: 81 (scheduled workdays - not counting day of injury)
Number of licensed units: 36 (spares, autos, pick-ups and revenue producing)
Number of Vehicle Accidents: 25 (any claim or damage involving a licensed unit)
Number of OSHA Recordable Cases 18 (total cases on OSHA log)
Number of light duty days 10
A. Lost-Time Injury Frequency Rate
Formula: # of Lost-Time Injuries x 200,000 Total Hours Worked
Sample Data: 5 x 200,000 111,935
Frequency Rate: 8.93
Based on 5 lost-time injuries for 111,935 hours of exposure, this company would experience 8.93 lost-time injuries by the time they reached 200,000 hours. Note: 200,000 hours represents the equivalent of 100 employees working 1 full year. B. Lost-Time Injury Severity Rate
Formula: # of Work Days Lost x 200,000 Total Hours Worked
Sample Data: 18 x 200,000 111,935
Severity Rate: 145
Based on 81 lost workdays for 111,935 hours of exposure, this company would experience 145 days lost by the time they reached 200,000 hours. C. OSHA Recordable Frequency Rate
Formula: # of OSHA recordable injuries/illnesses x 200,000 Total Hours Worked
Sample Data: 81 x 200,000 111,935
Frequency Rate: 162.59
Based on 91 lost and light duty workdays for 111,935 hours of exposure, this district would experience 162.59 lost and light duty workdays by the time they reached 200,000 hours.
D. OSHA Recordable Severity Rate
Formula: ( # of work days lost + light duty days lost) x 200,000 Total Hours Worked
Sample Data: (81 + 10) x 200,000 111,935
Frequency Rate: 32.16
Based on 18 OSHA recordable cases for 111,935 hours of exposure, this company would experience 32.16 OSHA recordable injuries/illnesses by the time they reached 200,000 hours.
E. Vehicle Accident Rate
Formula: # of vehicle accidents # of licensed vehicles
Sample Data: 25 36
Frequency Rate: 0.69
Based on a 0.69 frequency rate, this company is experiencing 7 accident claims annually for every 10 vehicles. Note: to compute an "annualized" vehicle accident rate for less than 12 months, it is necessary to multiply the number of accidents for the particular period as follows:
Period
Factor
3 months
X 4 6 months
X 2
9 months
X 1.333 12 months
X 1
The safety milestone recognition is an incentive award given to a company that achieved excellent safety performance of having NO LOST TIME ACCIDENTS for a particular period.
SAMPLE DATA
Number of Employees: 47 (all hourly and salaried personnel)
Number of hours per week: 111,935 (50 hours/week)
Number of lost time injuries: 5 (employee unable to work on next scheduled workday)
Number of days lost: 81 (scheduled workdays - not counting day of injury)
Number of licensed units: 36 (spares, autos, pick-ups and revenue producing)
Number of Vehicle Accidents: 25 (any claim or damage involving a licensed unit)
Number of OSHA Recordable Cases 18 (total cases on OSHA log)
Number of light duty days 10
A. Lost-Time Injury Frequency Rate
Formula: # of Lost-Time Injuries x 200,000 Total Hours Worked
Sample Data: 5 x 200,000 111,935
Frequency Rate: 8.93
Based on 5 lost-time injuries for 111,935 hours of exposure, this company would experience 8.93 lost-time injuries by the time they reached 200,000 hours. Note: 200,000 hours represents the equivalent of 100 employees working 1 full year. B. Lost-Time Injury Severity Rate
Formula: # of Work Days Lost x 200,000 Total Hours Worked
Sample Data: 18 x 200,000 111,935
Severity Rate: 145
Based on 81 lost workdays for 111,935 hours of exposure, this company would experience 145 days lost by the time they reached 200,000 hours. C. OSHA Recordable Frequency Rate
Formula: # of OSHA recordable injuries/illnesses x 200,000 Total Hours Worked
Sample Data: 81 x 200,000 111,935
Frequency Rate: 162.59
Based on 91 lost and light duty workdays for 111,935 hours of exposure, this district would experience 162.59 lost and light duty workdays by the time they reached 200,000 hours.
D. OSHA Recordable Severity Rate
Formula: ( # of work days lost + light duty days lost) x 200,000 Total Hours Worked
Sample Data: (81 + 10) x 200,000 111,935
Frequency Rate: 32.16
Based on 18 OSHA recordable cases for 111,935 hours of exposure, this company would experience 32.16 OSHA recordable injuries/illnesses by the time they reached 200,000 hours.
E. Vehicle Accident Rate
Formula: # of vehicle accidents # of licensed vehicles
Sample Data: 25 36
Frequency Rate: 0.69
Based on a 0.69 frequency rate, this company is experiencing 7 accident claims annually for every 10 vehicles. Note: to compute an "annualized" vehicle accident rate for less than 12 months, it is necessary to multiply the number of accidents for the particular period as follows:
Period
Factor
3 months
X 4 6 months
X 2
9 months
X 1.333 12 months
X 1
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