23 
3. Track planning 
3.1 Determining local peculiarities: fine planning of the route, including regional 
boundary conditions, e.g. sea marks, traffic separation schemes, speed restric 
tions. This functionality includes any necessary introduction of further way points. 
3.2 Fixing the track, i.e. describing planned manoeuvres at course changing points by 
fixing the turning radii or ROT as well as determining rudder setting points for 
course changes 
3.3 Fixing the maximum transverse and longitudinal deviations from the planned 
track. 
3.4 Determining the manoeuvring limits: maximum ROT and maximum rudder posi 
tion. 
2.1.3 Functions 
The functionalities of the task “Drafting the voyage plan” are of the “Data recording" type. They are thus 
composed of the elementary individual functions “Record input data”, “Evaluate data” and “Provide set 
values/information”. 
Annex 7.1 contains the functionalities identified for this task as well as the elementary individual func 
tions with their input and output data, in overview form. 
22 Checking the voyage plan 
The term “checking" in this context is understood to mean the comparison of resultant information from 
the task “Drafting the voyage plan” (see 2.1) with the reference values (“limit values” or “limits”), which 
are produced from the different boundary conditions. In the analysis of this task, the resultant informa 
tion from the task “Drafting the voyage plan” should be assumed as a starting point. This supplies the 
following information: 
1. Description of the planned route: way points, set courses and distances between the 
way points. 
2. Detailed description of the planned track: fixing the manoeuvre at course changing 
points (turning radius/ROT as well as wheel-over points), maximum transverse and 
longitudinal deviations. 
3. Speed/time profile: set speeds for the track sections, expected passage and arrival 
times at selected way points. 
4. Manoeuvring limits: maximum ROT and maximum rudder position. 
2.2.1 Purpose of task 
As already stated under the task “Drafting the voyage plan”, a distinction may be made between check 
ing the route and checking the track. The aim of route checking is to establish whether the planned 
route can be followed, bearing in mind the characteristics of the own ship as well as of the meteorologi 
cal and hydrographic boundary conditions expected. In this case, the following criteria should be con 
sidered: