Preferred term

AIDS TO NAVIGATION

Narrower concepts

Used for

  • BUOYS
  • LIGHTHOUSES
  • NAVIGATIONAL MARKERS

Scope note

  • Devices or systems, external to a vessel, intended to assist a navigator to determine position or safe course or to warn of dangers or obstructions to navigation. For onboard navigational aids, use NAUTICAL CHARTS or NAUTICAL INSTRUMENTS.

URI

http://metadata.un.org/thesaurus/1000184

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