Tactical voyageplan broadcast, extended

Introduction/Additional information:

Transmitter

Vessels only.

Transmission prerequisites

The message is only transmitted if vessel is conned along an active voyageplan.

Transmission triggering events

The following events must trigger a transmission of this message:

Periodically. [Using AIS: To use periodic transmission intervals as defined for dynamic information in Table 1 of [AISSPEC5] (§4.2.1)]
On voyage plan activation.
On voyage plan change (change to waypoints or change of ETA to any waypoint of more than 10 minutes).
On voyage plan deactivation/cancellation
On change of active waypoint.
As reply to message "tactical voyageplan inquiry".

Retransmission

Retransmission is not applicable.

Message format Waypoints are denoted WP0, WP1 , WPi ,…, WPn and are navigated in sequence. WP0 is the active waypoint currently steered towards. WPi , where i ≥ 1, is called following waypoints.

Permitted as from:

04/02/2015

Registrant:

Danish Maritime Authority

Physical link:

AIS

Message number (0=VDES-VDE):

DAC or VPFI:

219

FI / Message ID:

State:

proposal

Number of slots (max):

Last modified:

29/01/2021 - 23:19

Used by:

Danish Maritime Authority

Details:

Parameter	No. of bits	Description
Message ID	6	Identifier for Message 8; always 8.
Repeat Indicator	2	Used by the repeater to indicate how many times a message has been repeated. 0 - 3 0 = default 3 = do not repeat anymore
Source ID	30	MMSI number of source station.
Spare	2	Not used. Set to zero.
IAI	16	DAC = 219; FI = 4

Parameter	No. of bits	Description
Message may end here to indicate cancellation of previously announced tactical voyageplan.
WP0, position	28	Longitude in 1/10,000 min, ±180 degrees as per 2’s complement (East = positive, West = negative).
WP0, position	27	Latitude in 1/10,000 min, ±90 degrees as per 2’s complement (North = positive, South = negative).
WP0, ETA	5	UTC hour
		Integer value
		Values outside the range 0-23 are illegal and must not be used.
		Values are current or future.
	6	UTC minute
		Integer value
		Values outside the range 0-59 are illegal and must not be used.
WP0, TCR	8	Turn circle radius at the active waypoint. Type: Integer. Unit: 1/100 of a nautical mile. 0 = no value 1 - 255 = turn circle radius of 0.01 nm - 2.55 nm
Following waypoints with ETA and TCR	n × 63	Variable no. of planned waypoints and ETA’s. n {0..12} See table 2
Total	56	56 bits for cancellation.
	130	130 bits for WP0, no following WP’s.
	201	201 bits for WP0, 1 following WP.
	…	…
	982	982 bits for WP0, 12 following WP.

Parameter	No. of bits	Description
Message ID	6	Identifier for Message 8; always 8.
Repeat Indicator	2	Used by the repeater to indicate how many times a message has been repeated. 0 - 3 0 = default 3 = do not repeat anymore
Source ID	30	MMSI number of source station.
Spare	2	Not used. Set to zero.
IAI	16	DAC = 219; FI = 4

Parameter	No. of bits	Description
Message may end here to indicate cancellation of previously announced tactical voyageplan.
WP0, position	28	Longitude in 1/10,000 min, ±180 degrees as per 2’s complement (East = positive, West = negative).
WP0, position	27	Latitude in 1/10,000 min, ±90 degrees as per 2’s complement (North = positive, South = negative).
WP0, ETA	5	UTC hour
		Integer value
		Values outside the range 0-23 are illegal and must not be used.
		Values are current or future.
	6	UTC minute
		Integer value
		Values outside the range 0-59 are illegal and must not be used.
WP0, TCR	8	Turn circle radius at the active waypoint. Type: Integer. Unit: 1/100 of a nautical mile. 0 = no value 1 - 255 = turn circle radius of 0.01 nm - 2.55 nm
Following waypoints with ETA and TCR	n × 63	Variable no. of planned waypoints and ETA’s. n {0..12} See table 2
Total	56	56 bits for cancellation.
	130	130 bits for WP0, no following WP’s.
	201	201 bits for WP0, 1 following WP.
	…	…
	982	982 bits for WP0, 12 following WP.

Table 10. Following waypoints.

Parameter	No. of bits	Description
WPi, longitude	28	Longitude in 1/10,000 min, ±180 degrees as per 2’s complement (East = positive, West = negative).
WPi, latitude	27	Latitude in 1/10,000 min, ±90 degrees as per 2’s complement (North = positive, South = negative).
WPi, relative ETA	8	Relative ETA from previous waypoint; measured in minutes. Integer value; [0-255]. 0 = Not used. Illegal value. 1 - 255 = Relative ETA measured in number of minutes from previous waypoint.
WPi, TCR	8	Turn circle radius at WPi. Type: Integer. Unit: 1/100 of a nautical mile. 0 = no value 1 - 255 = turn circle radius of 0.01 nm - 2.55nm
Total	71

Table 11. No. of transmission slots.

Payload	Bits	Slots
Cancellation	55	1
Active waypoint, no following waypoints	130	1
Active waypoint, 1 following waypoint	201	2
Active waypoint, 2 following waypoints	272	2
Active waypoint, 3 following waypoints	343	2
Active waypoint, 4 following waypoints	414	3
Active waypoint, 5 following waypoints	485	3
Active waypoint, 6 following waypoints	556	3
Transmitting more than 3 slots is not recommended
Active waypoint, 7 following waypoints	627	4
Active waypoint, 8 following waypoints	698	4
Active waypoint, 9 following waypoints	769	4

Payload	Bits	Slots
Active waypoint, 10 following waypoints	840	5
Active waypoint, 11 following waypoints	911	5
Active waypoint, 12 following waypoints	982	5

Attachment:

message_exchange_for_flow_management_in_maritime_traffic_management_systems.pdf [1]