Clear communication at sea

Handovers, orders and briefings that work for every kind of mind, and make ships safer for everyone.

A crew member at the controls on a ship's bridge on a rainy day, seen from behind

Why it matters

Clear communication is already central to safety at sea, from bridge resource management and engine room resource management to permits to work and the IMO Standard Marine Communication Phrases. Communicating in ways that work for neurodivergent people simply makes those good habits stronger.

Tired
after a long watch, everyone processes information more slowly
Multilingual
many crews work in a second or third language
Noisy
alarms, engines and radios compete for attention

When people are tired, stressed, working in a second language or in a noisy space, clear communication helps everyone, neurodivergent or not.

Spoken instructions

Instead of

  • ”Sort that valve out.”
  • Three instructions in one breath
  • ”Give me a ballpark figure."
  • "Got it?” “Yep."
  • "That’ll be fun,” said sarcastically

Try

  • ”Close valve 12 on the port fuel line now.”
  • One step, a pause, then the next
  • ”Give me a rough estimate, to the nearest tonne."
  • "Tell me what you’re going to do.”
  • Saying what you actually mean

Closed-loop communication

Closed-loop communication is a simple, proven way to prevent misunderstandings:

  1. Send

    Give the instruction clearly, using the person's name.

  2. Repeat back

    The person repeats the instruction in their own words.

  3. Confirm

    You confirm it's correct, or correct it.

  4. Report

    The person reports when it's done.

Written information

Good written information helps people with dyslexia and other SpLDs, people working in a second language, and anyone reading at 0300.

  • Use plain English and short sentences.
  • Put the most important information first.
  • Use headings, numbered steps and bullet points instead of long paragraphs.
  • Add diagrams, photos or annotated drawings where they help.
  • Use a clear sans-serif font, at least 12pt, and avoid large blocks of capitals, italics or underlining.
  • Use bold for emphasis, sparingly.
  • Make digital documents work with text-to-speech.
Engine control levers and a compass on a ship's bridge
Numbered steps, plain language and diagrams make procedures easier for everyone.

Handovers

A good handover is structured and written down, so nothing depends on memory:

  1. Use a standard checklist or template.
  2. Point out anything that has changed since the last watch.
  3. Highlight anything unusual to watch for, and what to do if it happens.
  4. Leave time for questions.
  5. Confirm the handover is complete.

Briefings and meetings

  • Share an agenda in advance if you can, and say how long it will last.
  • Explain the purpose at the start.
  • Invite questions in more than one way, including afterwards, in private or in writing.
  • Summarise key decisions and actions in writing afterwards.
  • Don’t ask someone to take notes or read aloud without checking first.

Feedback

Be direct, specific and kind. Explain what happened, why it matters, and what to do differently, without blame.

Many neurodivergent people have had years of criticism. Clear, balanced, private feedback builds trust, and makes it far more likely to be acted on.

Sources and further reading

  • How to support a neurodivergent crewmate

    Practical, everyday steps that make ships better places to work for neurodivergent seafarers, and for everyone else too.

  • Autism

    A lifelong difference in how people communicate, process sensory information and experience the world, and the strengths that come with it.

  • Specific learning differences

    Dyslexia, dyspraxia, dyscalculia and dysgraphia: differences in reading, coordination, numbers or writing, and the practical strengths that often come with them.

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