Voyage Planning in the Digital Age


Good practice for creating routes on electronic chart navigation systems: • Give the overall route and each waypoint a meaningful name


• Wherever possible, place waypoints in positions that can be verified without a GNSS position


• Identify aids to navigation and features that can be used during the route to monitor your progress and position


• Use the waypoint notes to add additional information so all onboard can follow the plan


Make sure the plan details the settings required for specific phases of the passage, particularly chart layers, units, cross-track-distance/error (XTD/XTE) alarms, waypoint-arrival alarms, and vector lengths.


Identify pilotage waters and prepare a plan for monitoring progress while in them. Identify key times in the plan, such as required-departure times or deadlines for entry or exit.


Execute and Monitor


At the point of executing the plan, check that all the assumptions and information are still the same. If they are not, reassess your plan. Is the weather as expected? Is the boat in the same state as assumed? Have you been delayed from the planned departure time and, if so, how does this affect the plan?


Once under way, it is important to monitor progress against your plan, including regular position monitoring. If using a GNSS position or an electronic navigation system, monitor your position with techniques that are independent of any GNSS-derived data. Remember: never rely upon one source of information.


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