5.3 Composite data types 
Data type 
Description 
Structure 
1 
Absolute object data 
Dafa which describe foreign object, movement in absolute 
system 
2 
Deviation of arrival time 
Deviation from a planned arrival time for a given position 
Arrival position AS POSITION + 
Time deviation AS TIME 
3 
Deviation of track 
Deviation from a set track 
Transverse deviation + longitudinal deviation 
4 
Deviation of speed/time profile 
Set/actual deviations, SOGx for route sections 
Set/actual deviations, passage and arrival times for selected 
way points 
ARRAY OF [WP ID + deviation SOGx] + 
ARRAY OF [WP ID + deviation arrival time] + 
ARRAY OF [WP ID + deviation passage time] 
5 
Deviation of manoeuvre 
Deviation from planned manoeuvre given by turning radius or 
ROT and rudder setting point 
[Deviation turning radius II deviation ROT] + 
Deviation rudder setting point 
6 
Deviation of passage time 
Deviation from a planned passage time for a selected object 
Object AS ID + 
Time deviation AS TIME 
7 
Current sea data 
Observed current sea data: wave heights, frequency, direction 
8 
Current weather data 
Total of data which describe the current weather 
9 
Current voyage plan 
Present voyage plan used by the INS 
Voyage plan data 
10 
Arrival time 
Planned arrival time for a given position 
Arrival position AS POSITION + 
Arrival time AS TIME 
11 
Selected manoeuvre 
Selected man-overboard manoeuvre 
12 
Evasion track 
Evasion track for collision/grounding avoidance 
Way point list 
13 
Evasion route 
Route for evasion of bad weather regions 
Way point list 
14 
Track data 
Planning data describing a track, result of track planning 
Track way point list + 
ARRAY OF [ref. CMGx] + 
ARRAY OF [way point distance] + 
ARRAY OF [manoeuvre at way point] 
15 
Track limits 
Maximum transverse and longitudinal deviations for planned 
track 
ARRAY OF [WP ID + max. transverse deviation max. + 
longitudinal deviation 
16 
Data on visibility conditions 
Data on visibility conditions to be expected; classification (eg 
“clear view”, “mist”, “fog”), indication of visibility in sm 
17 
Data on traffic diversion 
Data on traffic-diverting measures in sea region concerned, eg 
traffic separation regions, tons, speed restrictions 
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