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CEVNI revision module 3 of 9

LGT

Lights and Day Shapes

Inland vessel lights, shapes, special signals, and restricted manoeuvrability indicators.

vessel lightsday shapes

4 guided lessons · 8 practice questions · 8 flashcards

3 outcomes · self-guided revision
  • Explain inland vessel lights, shapes, special signals, and restricted manoeuvrability indicators.
  • Apply vessel lights to a realistic onboard situation.
  • Recall the core check: do not treat lights as night-only trivia; they tell you vessel status and risk.

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Lesson routeWhy Inland Visual Signals Matter0/1 read

Lesson 1 of 1

Why Inland Visual Signals Matter

Inland waterways use vessel lights, day shapes, boards, flags, and shore lights to show vessel type, status, cargo risk, traffic permission, and restricted manoeuvring ability. The aim is early recognition in confined water.

Small craft often meet vessels that are long, deep, towing, pushing, carrying hazardous goods, or committed to a bridge or lock approach. Their lights and shapes help you decide how early to keep clear.

  • Do not treat lights as night-only trivia; they tell you vessel status and risk.
  • Day shapes and boards can carry the same operational message by day.
  • Commercial vessels may have formations and signals unfamiliar to coastal sailors.
  • Lock and bridge lights control whether you may enter or must wait.
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