Total Recordable Incident Rate Calculator

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Total Recordable Incident Rate (TRIR) Calculator

.calculator-container { font-family: Arial, sans-serif; border: 1px solid #ddd; padding: 20px; border-radius: 8px; max-width: 400px; margin: 20px auto; box-shadow: 0 2px 5px rgba(0,0,0,0.1); } .calculator-title { text-align: center; color: #333; margin-bottom: 20px; } .input-group { margin-bottom: 15px; display: flex; flex-direction: column; } .input-group label { margin-bottom: 5px; font-weight: bold; color: #555; } .input-group input { padding: 10px; border: 1px solid #ccc; border-radius: 4px; font-size: 1em; } .calculator-button { display: block; width: 100%; padding: 12px; background-color: #007bff; color: white; border: none; border-radius: 4px; font-size: 1.1em; cursor: pointer; transition: background-color 0.3s ease; } .calculator-button:hover { background-color: #0056b3; } .calculator-result { margin-top: 20px; text-align: center; font-size: 1.2em; color: #28a745; font-weight: bold; } function calculateTRIR() { var numberOfHoursInput = document.getElementById("numberOfHours"); var numberOfIncidentsInput = document.getElementById("numberOfIncidents"); var resultDiv = document.getElementById("result"); var totalHours = parseFloat(numberOfHoursInput.value); var numberOfIncidents = parseFloat(numberOfIncidentsInput.value); if (isNaN(totalHours) || isNaN(numberOfIncidents)) { resultDiv.textContent = "Please enter valid numbers for all fields."; resultDiv.style.color = "red"; return; } if (totalHours <= 0) { resultDiv.textContent = "Total hours worked must be greater than zero."; resultDiv.style.color = "red"; return; } // TRIR Formula: (Number of Recordable Incidents * 200,000) / Total Hours Worked var trir = (numberOfIncidents * 200000) / totalHours; resultDiv.textContent = "TRIR: " + trir.toFixed(2); resultDiv.style.color = "#28a745"; }

Understanding the Total Recordable Incident Rate (TRIR)

The Total Recordable Incident Rate (TRIR) is a key metric used by OSHA (Occupational Safety and Health Administration) and other safety organizations to measure a company's workplace safety performance. It quantifies the number of work-related injuries and illnesses that are considered "recordable" per 100 full-time employees during a one-year period.

A "recordable" incident includes any work-related fatality, any work-related injury or illness that results in loss of consciousness, restricted work or transfer of a job, medical treatment beyond first aid, or diagnosis of a significant injury or illness by a licensed healthcare professional.

The TRIR is calculated using the following formula:

TRIR = (Number of Recordable Incidents × 200,000) / Total Number of Hours Worked

The factor of 200,000 represents the number of hours 100 full-time employees would work in a year (100 employees × 40 hours/week × 50 weeks/year). This standardization allows for fair comparison between companies of different sizes and across different industries.

A lower TRIR generally indicates a safer workplace. Companies strive to reduce their TRIR through robust safety programs, training, hazard identification, and incident investigation.

Example Calculation:

Consider a manufacturing company that employs 50 full-time workers. Over the course of a year, these employees collectively work 100,000 hours. During that same year, there were 5 recordable incidents.

  • Number of Recordable Incidents = 5
  • Total Hours Worked = 100,000

Using the calculator or the formula:

TRIR = (5 × 200,000) / 100,000 = 1,000,000 / 100,000 = 10.00

This means that for every 100 full-time employees, there were 10 recordable incidents in that year. This rate would then be compared to industry averages to assess its relative safety performance.

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