Incident and Accident Analysis
Structured post-incident analysis of whether fatigue contributed to an event, and through which pathway.
The problem
Fatigue is easy to assert and hard to establish after the fact. Investigations tend either to miss it or to blame it without testing the alternatives.
Was It Fatigue? gives your investigators a consistent, repeatable way to ask, and a record that shows the alternatives were tested.
Presented by Professor Drew DawsonNational figures for the United States, from published research. They are modeled, not measured in your workforce.
Stories
Findings from investigators, coroners and courts in the United States that fatigue contributed, the most harmful first.
After an incident or near miss, investigators work through a structured method: was fatigue present, and was the error the kind fatigue produces once other explanations are tested? It sits at the last level of defense, after something has gone wrong, and feeds each finding back into the levels before it: rosters, sleep and in-shift controls.
Step 01
An investigator opens an assessment against a specific incident.
Step 02
The Fatigue Likelihood Score, from four questions: falling asleep immediately prior, behavioral symptoms in the preceding fifteen minutes, prior sleep and wake history, and sleep opportunity in the roster.
Step 03
The Fatigue Error Likelihood Score tests alternative explanations at every level before attributing the error to fatigue.
Step 04
A Fatigue Attributable Likelihood Score on a 1–5 band with the pathway named, which feeds back into roster, sleep and in-shift controls.
After an incident, fatigue is either missed or blamed without testing the alternatives. Neither helps the people involved, and neither tells you which control failed. I wanted investigators to have a consistent way to ask the question properly, and a record that shows they did.
Daniel PlattCo-founder and CEORollout
Agree which events call for an assessment, and who investigates.
Investigator access, fitted to your existing incident process.
Investigators learn the method and work a first case together with us.
Findings feed back into roster, sleep and in-shift controls.
What the client sees
Each record names the fatigue pathway and documents the alternatives tested. It is priced on investigation volume, not headcount: the only event-priced product in the suite.
Priced on prevalence, not headcount. How pricing works.
Your investigators
The employer
Evidence
Its construction requires both the presence of fatigue and a fatigue-signature error, and tests alternative explanations throughout. That is what stops it inferring causation from fatigue alone.
It is the only product in the suite that looks across all levels, including roster adequacy, retrospectively after an event.
It is retrospective. It does not predict an event, does not size a population, and one investigation does not establish a pattern. It is not a validated instrument and no validation claim is made for it. Records produced are discoverable.
Rail · North America
Its investigators ask the same structured questions after every event, so each record assesses how likely it is that fatigue was present and that the error was the kind fatigue produces, and shows which other explanations were tested.
FAQs
Your investigators, who open an assessment against a specific incident or near miss.
It requires both the presence of fatigue and an error of the kind fatigue produces, and tests alternative explanations at every level before attributing an error to fatigue.
A Fatigue Attributable Likelihood Score on a 1–5 band with the fatigue pathway named, which feeds back into roster, sleep and in-shift controls.
No, and no validation claim is made for it. It is a structured, repeatable method. It is retrospective: it does not predict an event, and one investigation does not establish a pattern. Records produced are discoverable.
On investigation volume, not headcount: it is the only event-priced product in the suite.
The platform is certified to ISO/IEC 27001:2022.
Pathways
See how Was It Fatigue? fits the regulation in your industry, and what else we would start with there.
Catch elevated risk at the start of duty, before the next event.
Turn investigation findings into a measured, organization-wide picture.
Tell us a little about your organization and which solutions you’re looking at, and our team will be in touch.
