Todd Navigation

Mariner's Routeing Guides

Essential routeing information to help bridge crews safely navigate through some of the world's busiest and most complex shipping routes.

Each Mariner’s Routeing Guide includes:

  • Verified information highlighting dangers or warnings to navigation, limited depths and dense traffic areas. This additional information, when used alongside official navigational charts, can help to increase situational awareness and reduce the risk of damage caused by collisions and groundings.
  • Clear guidance on traffic separation schemes and routeing measures that have been adopted by the IMO and national authorities.
  • Weekly updates and new editions to help maintain high levels of accuracy and safety. Some routeing guides also include ADMIRALTY QR codes for quick access to a list of all Notices to Mariners (NMs) that affect each chart.

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