Flow management suggestion

Introduction/Additional information: 

Transmitter

Coordination centers (for controlled flow management).

Transmission prerequisites

The message is only transmitted if the receiving vessel has previously broadcast a tactical voyage plan which is still considered valid by the control center (e.g. ETA of active waypoint is in the future).

This message can only be sent in response to a "Tactical voyageplan broadcast" or a "Tactical voyageplan broadcast, extended".

The latitude and longitude of suggested active and planned waypoints must match exactly those received in the latest "Tactical voyageplan broadcast" or a "Tactical voyageplan broadcast, extended". If this is not the case, the vessel, to which the flow management suggestion is addressed, must disregard it, and broadcast a new tactical voyageplan message.

Transmission triggering events

The following events must trigger a transmission of this message:

1. On coordination center determining that speed-based changes to tactical voyageplan of vessel will lead to a better overall flow.

Retransmission

Retransmission is not applicable.

Message format

Waypoints are denoted WP0, WP1, WPi,…, WPand are navigated in sequence. WPis the suggested active waypoint currently to be steered towards. WPi, where ≥ 1, is called the following suggested waypoints.

Permitted as from: 
04/02/2015
Registrant: 
Danish Maritime Authority
Message number: 
6
DAC: 
219
FI: 
6
State: 
proposal
Number of slots (max): 
5
Last modified: 
20210129T231841