1. What is LTISR?

The Lost Time Injury Severity Rate (LTISR) is a safety metric used in Australia to measure the severity of workplace injuries. It calculates the number of lost days due to injury per million hours worked.

2. How Does the Calculator Work?

The calculator uses the LTISR formula:

Where:

• \( Lost Days \) — Total days lost due to workplace injuries
• \( Hours Worked \) — Total hours worked by all employees during the period

Explanation: The formula standardizes injury severity by accounting for the total exposure (hours worked) across the workforce.

3. Importance of LTISR Calculation

Details: LTISR helps organizations track safety performance, identify trends in injury severity, and compare performance across different time periods or with industry benchmarks.

4. Using the Calculator

Tips: Enter total lost days and total hours worked for the period you're analyzing. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's considered a good LTISR?
A: Lower values are better. Industry benchmarks vary, but generally an LTISR below 10 is considered good for most industries.

Q2: How does LTISR differ from LTIFR?
A: LTIFR (Lost Time Injury Frequency Rate) measures how often injuries occur, while LTISR measures the severity of those injuries.

Q3: What time period should I use?
A: Typically calculated annually, but can be calculated for any period (monthly, quarterly) for more frequent monitoring.

Q4: Should I include all employees in hours worked?
A: Yes, include all employees who were exposed to the workplace during the period, including part-time and casual workers.

Q5: How are lost days counted?
A: Count calendar days from the day after the injury occurs until the employee returns to full duties (excluding the day of return).