Comparing DART Rate and TRIR Rate: A Guide to Calculating DART Rate

Maintaining a safe working environment is crucial, and tracking workplace safety performance through incident rates provides valuable insights. One key metric is the Days Away, Restricted Work, and Transferred (DART) rate. This rate measures the frequency of workplace accidents or illnesses that require an employee to be absent from work, limit their work activities, or change jobs. Monitoring DART rates enables companies to identify areas for improvement and establish a safer work environment for their employees.

This article will explore the differences between DART and TRIR rates and provide a comprehensive guide on calculating DART rates.

What is the DART Rate?

The DART rate, or Days Away Restricted Work or Transferred Rate, is an essential indicator for assessing workplace safety. It tracks explicitly the number of work-related injuries and illnesses that lead to employees taking time off work, having limitations on their typical job activities, or requiring job transfers.

DART rate significance lies in its ability to highlight the most severe occupational safety incidents. It goes beyond minor injuries, focusing on cases disrupting employees’ regular work schedules. This enables organizations to identify places to improve safety procedures and avoid serious injuries or illnesses.

By tracking DART rates over time, companies can assess the success of their safety policies and evaluate their progress toward a safer workplace.

Here’s a step-by-step guide to calculating DART rates:

  1. Gather Data: You’ll need two essential pieces of information: the total number of recordable incidents (days away, restricted work, or job transfer) within a specific timeframe (usually a year) and the total number of employee labor hours during the same period.
  2. Apply the Formula: To calculate DART rate, multiply the number of recordable incidents by 200,000 and divide by the total number of employee work hours. Figure 200,000 corresponds to a standardized assumption of 100 employees working 40 hours per week for 50 weeks.
  3. Interpret the Result: The DART rate is expressed per 100 employees. A lower DART rate indicates better workplace safety performance.

For example, consider an organization with 20 recordable incidents (days away, restricted work, job transfer) in a year and 1,000,000 employee hours worked. The DART rate would be 4 per 100 employees, multiplying 20 recordable cases by 200,000 and dividing by 1,000,000 hours. This suggests the need for improved workplace safety measures, as a lower DART rate is preferable.

DART rate vs. TRIR Rate 

construction concept, Yellow safety hard hat

DART rate and TRIR ( Total Recordable Incident Rate) are necessary workplace safety measurements,  although they evaluate safety from distinct perspectives. 

TRIR,  commonly known as the OSHA incident rate,  calculates the total number of recordable workplace injuries and illnesses per 100 employees.  This includes all situations requiring medical attention beyond basic first aid, even if they do not result in missed work. 

In contrast,  the DART rate focuses on more severe occurrences that impair employees’ capacity to fulfill their job obligations. It exclusively covers all incidents Rahat results in days off from work, restricted work activities, or job transfers.

A minor work injury requiring a doctor’s appointment but not resulting in missed work is considered TRIR but not DART. 

As a result,  TRIR provides a more comprehensive perspective of workplace safety occurrences, whereas DART focuses on incidents that significantly impact employee well-being and productivity. Businesses can better picture their workplace safety performance by tracking both rates with the OSHA dart rate calculator. 

What is a Good DART Rate?

A lower DART rate indicates a safer working environment for employees, suggesting fewer injuries and illnesses that require employees to leave work, have constraints, or change occupations. However, there is no single “good” DART rate, as it varies by industry. For example, the construction industry has a higher risk profile than office jobs, so a lower DART rate would be expected in less hazardous industries.

Standardizing your DART rate against industry standards can help determine its significance. The Bureau of Labor Statistics provides resources for comparing your DART rate to those of similar businesses. This standardization enables you to assess whether your DART rate is adequate or whether improvement initiatives are needed.

DART Rate Safety 

The DART rate is a valuable tool for monitoring safety performance and identifying areas for improvement. 

Analyzing DART rate trends allows companies to identify specific types of incidents or work areas that contribute the most to recordable instances. This enables a tailored treatment to address underlying safety issues. 

Here’s how to use DART rates to improve safety:

  1. Develop Safety Measures: Analyzing DART rates can show repeated occurrences, creating data-driven safety measures.  These programs might target high-risk locations or specific types of injuries. 
  2. Implement hazard prevention: DART rates can identify regions prone to accidents. By identifying these risks, organizations or firms can take preventive steps such as building machine guards, providing slip-resistant footwear, or providing ergonomics training.

Conclusion

Injury prevention is paramount for a safe and productive workplace. Organizations can protect employees and enhance performance by tracking distinctive metrics and implementing effective safety measures. The OSHA rate calculator is highly recommended to ensure that you calculate dart rates correctly. 

Take Action for Workplace Safety

Partner with WorkPartners to ensure your workplace meets the highest safety standards. Our experienced team specializes in injury prevention and safety management, helping you achieve optimal DART and TRIR rates. Contact us today or call us at (800) 359-5020 to learn more about our services and how we can assist you in creating a safer work environment.