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The International Civil Aviation Authority (ICAO) provides guidelines to airlines on how to adopt Fatigue Risk Management Systems (FRMS) to manage their employee alertness.

World class expertise for a global industry

Our products and services are used across the world by regulators and airline operators as well as industry and employee groups to develop and implement their fatigue management programmes. We help our clients to reduce the risk of incidents caused by fatigue and tiredness.


Our work has led to industry-level changes in regulations and operations that have benefitted organisations, individuals and regulators. 

Our solutions apply across aircrew, Air Traffic Controllers, ground crew and search and rescue flights teams for scheduled and on-demand services. 

fatigue hazards

Data based decision making -
you’re in control

Informed decision-making is at the heart of an effective fatigue risk management system. Our tools put you in control to manage your organisation’s fatigue risk profile.

Continuously monitoring -
be proactive not reactive

Our aviation fatigue models and FRMS support continuous monitoring of roster fatigue risk to allow you to proactively manage and optimise crew fatigue.

fatigue hazards

Ensuring alertness levels -
benefitting you and your staff

Fatigued staff communicate less, have darker mood levels and higher turnover. We can help you reduce fatigue and improve productivity and staff welfare.

Our world class solutions to help you manage fatigue risk in aviation


Helping identify and measure your aviation fatigue risk

Our expertise and tools identify and measure the risk caused by fatigue. Our workshops help our clients construct and implement FRMS processes in line with local regulations.

We advise safety and operations managers, Fatigue Safety Action Groups (FSAG) and senior management in methods, models and processes to effectively manage and monitor fatigue risk, meeting local regulatory requirements.


Managing fatigue in your operations through our training courses

We provide training courses to cover all aspects of managing fatigue within an airline, air traffic control bureau, airport or regulator.

Learn from our 40+ years of research and operational experience of managing fatigue from a scientific and a regulatory perspective, benefiting from our CAA International trainers to learn about fatigue science and countermeasures.


Implementing tools to help you identify and manage your pilot and cabin crew fatigue

Use our world-class models to identify fatigue risk across your rosters so you take proactive action

Our fatigue models help you assess and quantify fatigue risk in your rosters for all aviation employees. Using validated biomathematical models enables you to optimise scheduled or on-demand rosters without compromising safety.

Our SAFE and CARE Models determine fatigue and alertness from your rosters

about safe
Biomathematical models

Fatigue models built from decades of studies with aircrew identifies fatigue risks and possible solutions.

The SAFE model is applicable for pilots of commercial passenger airlines, cargo, corporate aircraft and helicopters.
The CARE model is designed for cabin crew, with other models available to support ground crew, air traffic controllers, paramedics, search and rescue winchmen and swimmers.

FRI+ is an enhanced version of the Fatigue Risk Index for shift-workers designed for the UK Health and Safety Executive.

FRI+ is designed for non-flying safety critical occupations including Air Traffic Controllers, Airport workers and other ground crew.

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An Introduction to Fatigue Risk Management Systems