7.1.1.3 Planning the track 
Functionality level 1 
Functionality level 2 
Function 
Input information 
Output information 
1. Determine local cir 
cumstances 
1.1 Consider traffic- 
diverting measures 
1.1.1 Record input data 
• Coastal sea charts 
• Regional sea charts 
• Sea handbooks 
• Information on speed restrictions, traffic separation 
regions, stipulated waterways 
1.1.2 Evaluate data 
• Output information from 1.1.1 
• Selection of the information on traffic-diverting meas 
ures of relevance as regards the track being planned 
1.1.3 Provide set data 
• Output information from 1.1.2 
• Information is available for further use in the system 
1.2 Determine obstacles 
1.2.1 Record input data 
• Coastal sea charts 
• Regional sea charts 
• Sea handbooks 
• identification of obstacles such as shallows, roads, 
prohibited zones, fixed installations at sea 
1.2.2 Evaluate data 
• Output information from 1.2.1 
• Selection of the information of relevance as regards the 
track being planned 
1.2.3 Provide set data 
• Output information from 1.2.2 
• Information is available for further use in the system 
2. Stipulate track 
2.1 Determine fuming 
radii, ROT or rudder 
position 
2.1.1 Record input data 
• Route or course changing points 
• Set speeds 
• Ship data (manoeuvring capa 
bilities, load/stability) 
• Set courses, amount of particular course change nec 
essary 
• Boundary conditions for cou rse changes 
2.1.2 Evaluate data 
• Output information from 2.1.1 
• Turning radius, ROT or rudder position for each course 
changing point (way point) of the track 
2.1.3 Provide set data 
• Output information from 2.1.2 
• Output of the manoeuvre to be carried out at each 
course changing point, for user 
• Storage of characteristic values for course changing 
(i.e. ROT/turning radius/rudder angle) for further proc 
essing in the INS