Intended route

Introduction/Additional information: 
This message allows the communication of a vessels intended route to other vessels and shore stations.

The rules for broadcasting this message are the following
a)      Only broadcast when the vessel is following an activated route.
b)      The route must be broadcast every six minutes, due to what is stated in ITU-R M.1371-4 (§4.2.1) regarding sending interval for voyage related information.
c)       On route activation the route must be broadcast.
d)      When active waypoint changes the route must be broadcast.
e)      On route deactivation, or when a route is completed, an empty message with no waypoints must be sent to indicate that the vessel is not following an intended route.

The broadcast waypoints must start with the current active waypoint and include up to the 15 following waypoints, giving a maximum of 16 waypoints.

Broadcasting 16 waypoints will result in a 5-slot message. It is recommended to avoid messages with more than 3 slots, equivalent to no more than 8 waypoints.

See http://enav.frv.dk/ais_route_suggestion.pdf for usage and portrayal details.
Permitted as from: 
03/11/2011
Registrant: 
Danish Maritime Authority
Message number: 
8
DAC: 
219
FI: 
1
Technical point of contact: 
Jens Kristian Jensen
Danish Maritime Authority
JKJ@dma.dk
State: 
draft
Number of slots (max): 
3