TDODAR
Updated 2026-08-10
INTRODUCTION
English translation pending.
CORE DEFINITION
TDODAR is a decision sequence developed for aviation emergencies. Time asks how long is available, and that answer determines whether the fast or the deliberate path is appropriate. Diagnosis establishes what is happening; Options lists the available choices; Decide selects one; Act executes it; and Review examines the result afterwards. Putting time first is the model's distinctive move, because the correct amount of analysis depends entirely on how much time remains before the situation forces a choice.
SCAFFOLDING EFFECT
Reduce cognitive load
- Use time check: establish how much time you realistically have before deciding anything. - Use fast-slow choice: pick quick action or deliberate analysis based on that time answer. - Use review closure: examine the outcome afterwards and correct your course where it is needed.
Anchor fast decisions
Under time pressure, the first question is how much time remains, because that determines whether to act fast or analyse carefully. Diagnosis, options, decision, and action then follow, with review closing the loop so errors are corrected. The structure turns emergency decision making from panic into an ordered sequence.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- gov.ukhttps://www.gov.uk/guidance/leading-for-safety/2-decision-making-and-risk-managementverified
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