7.1.3.2 Checking the track 
Functionality level 1 
Functionality level 2 
Function 
Input information 
Output information 
1. Check navigability 
1.1.1 Record data and crite 
ria 
• Orderly way point list and con 
necting route sections 
• Hydrographic information (sea 
charts and handbooks) 
• Relevant objects along the track: traffic separation 
regions, waterway, obstacles 
1.1.2 Compare data and 
criteria 
• Result information from 1.1.1 
• Position of planned track in relation to the “relevant 
objects” identified 
1.1.3 Assess result of com 
parison 
• Result information from 1.1.2 
• Statement whether the identified objects have been 
appropriately taken into account in track planning 
• Identification of possible “critical areas”, stating 
cause 
1.1.4 Provide result of com 
parison 
• Result information from 1.1.3 
• Provision of the critical areas determined and their 
causes for revision of the original track data 
2. Check course 
changes/manoeuvre 
2.1.1 Record data and set 
values 
• Turning circles or ROT at course 
changing points 
• Manoeuvring capabilities and 
load status 
• Set speeds for track sections 
considered 
• Manoeuvring limits 
• Planned track characteristics and influencing pa 
rameters 
2.1.2 Compare and assess 
data and set values 
• Result information from 2.1.1 
• Statement whether planned turning circle/ROT at 
the course changing point can be run, bearing in 
mind the influencing parameters 
2.1.3 Provide result of com 
parison 
• Result information from 2.1.2 
• Provision of the result of the set/ actual compari 
son, stating particular cause