CIRCADIAN®, the leader in FRMS design and implementation consulting, offers the only complete suite of web-based software tools for Fatigue Risk Management Systems which provide all three required levels for FRMS control:

CAS Creates a Fatigue Risk Informed Operation: Fatigue is one of the most common sources of human impairment, costing business billions of dollars each year. Yet most operations don’t have an easy way to measure employee fatigue. To paraphrase the famous management consultant Peter Drucker: If you can’t measure fatigue risk, you can’t improve it.

The CAS Fatigue Risk Model empowers managers to measure fatigue risk and provides them with a critical feedback tool to drive down the risk and cost of fatigue in their operations:

  1. Benchmark Fatigue – Document fatigue scores and trends (e.g., last week, last month, last quarter). How are we trending? How does that correlate with our KPIs?

  2. Assess Real-Time Fatigue - Determine who is at greatest risk for a fatigue-related incident right now and employ countermeasures.

  3. Fatigue Risk Informed Planning – How will this bid schedule, overtime assignment, shift swap or schedule deviation impact an employee’s fatigue score? What schedule adjustments can we utilize to improve safety?

CAS Now Available as a Web-Based Subscription: For the first time, the CAS Fatigue Risk Model is now available as a cloud-based tool (i.e., SaaS) providing customers with the ultimate flexibility to run analyses wherever they have internet access.

Fatigue Accident/Incident Causation Testing System (FACTS™)  is an expert web-based system which calculates the probability of whether a person was impaired by fatigue at the time of an accident or incident.

FACTS helps every manager across your organization answer the following questions:

    • What is the probability that an individual was fatigued at the time of an incident/accident or operational deviation?
    • What was the source of excess fatigue risk (if any)? 
    • What percent of my company’s incidents/accidents/operational deviations are caused by a fatigue impaired employee? 
    • What is the cost of employee fatigue impairment at my company?


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FACTS Results

Know the Cost of Fatigue

We know that fatigue is one of the most pervasive causes of human error-related accidents, incidents, and injuries –costing billions of dollars each year. Yet, when asked most companies don’t know how much fatigue-related accidents are costing them each year. 

FACTS will allow your company to objectively record and monitor the true cost of fatigue incidents throughout your global operations.


Objective and Scientifically Validated

FACTS (Fatigue Accident/Incident Causation Testing System) captures the expertise of leading experts in fatigue/sleep and circadian physiology and transportation and industry incident investigation to provide you an expert online system. It creates a standard for investigating all incidents and has been validated against expert human panels.


CIRCADIAN® has worked with many Pipelines as they have implemented the fatigue mitigation portion of the PHMSA regulation for control room management.

Several of our pipeline clients have struggled with Part 195.446(e)(5), and as a result, CIRCADIAN® has adopted a program that uses the NASA-TLX task load analysis to assist pipeline control rooms in complying with this part of the regulation.

The PHMSA control room management regulation (195.446(e)(5)) requires pipeline control rooms to “Monitor the content and volume of general activity being directed to and required of each controller at least once each calendar year, but at intervals not exceeding 15 months, that will assure controllers have sufficient time to analyze and react to incoming alarms…”  Guidance from subsequent FAQ E5-1a from PHMSA indicates that the process for determining workload must “have a sufficient degree of formality and documentation.  Controllers might implement this requirement by means of a job task analysis (JTA), formal workload study or other means.”  The FAQ also indicates that the analysis should incorporate potential differences in activity levels for different days of the week as well as different shifts.  Further, the monitoring should include tasks such as manual calculations, alarms, phone calls, training, etc.

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