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:

LEVEL 1 - COMPLIANCE: Schedule Risk Analyzer™ tests schedules for conformance with Hours of Service and Work-Rest rules (e.g. RP-755).

LEVEL 2 - RISK: Schedule Risk Analyzer™ provides objective Fatigue Risk Assessment for shift schedules and duty-rest rosters, using the scientifically-validated CAS-5 fatigue modeling platform.

LEVEL 3 - INVESTIGATION: Fatigue Accident/Incident Causation Testing System (FACTS™) provides a scientifically-validated tool for incident and accident investiagtion and the determination of fatigue-realated causation.

CIRCADIAN Software Overview Video:


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Contact Information
Phone: 1.800.284.5001
Local: 1.781.439.6300


Circadian Headquarters
2 Main Street, Suite 310
Stoneham, MA, 02180, USA