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•  The  route,  as  an  orderly  list  of  way  points  which,  when  linked,  connect  together  the
ports  of  departure  and  destination.  Connection  of  the  way  points  by  means  of  straight
lines  produces  the  set  courses  for  the  individual  sections  of  the  route  and  the  distances
between  the  way  points.
•  Speed/time  profile  of  the  planned  route:  set  speeds  for  individual  sections  of  the
planned  route  as  well  as  times,  particularly  arrival  times  at  selected  way  points  as  a
function  of  distances  and  set  speeds
•  Description  of  the  set  track,  i.e.  detailed  definition  of  the  track  which  is  to  be  followed.
By  means  of  the  track,  fundamental  parameters  for  the  subsequent  manoeuvring  are
thus  provided:
•  Stipulation  of  turning  radii  or  ROT  for  course  changing  points
•  Determination  of  rudder  setting  points
•  Limit  values  for  the  maximum  transverse  and  longitudinal  deviation  (track  limits),  i.e.
maximum  permitted  deviation  from  the  defined  set  track.  The  limits  defined  here  must
be  compatible  with  the  geometrical  or  manoeuvring  parameters  defined  for  the  set
track  and  the  characteristic  properties  of  the  ship  (accuracy  of  the  sensor  technology,
manoeuvring  capabilities).
•  Manoeuvring  limit  values,  i.e.  maximum  ROT  and  maximum  rudder  position.  These
values  are  closely  linked  with  the  set  track,  since  requirements  on  rudder  setting  points
and  turning  radii  can  likewise  be  derived  from  the  maximum  ROT  or  rudder  position.
These  limit  values  are  moreover  dependent  on  the  particular  running  speed  achieved.

As  already  mentioned  above,  the  meteorological  and  hydrographic  input  data  necessary  for  voyage
planning  are  likewise  recorded  as  part  of  this  task.
2.1.2  Functionalities
Bearing  in  mind  the  output  information  listed  above,  the  following  functionalities  must  be  available  to  fulfil
track  planning:
1.  Recording  input  data:
1.1  Recording  hydrographic  data
1.2  Recording  meteorological  data
2.  Route  planning
2.1  Fixing  the  way  points  between  ports  of  departure  and  destination,  i.e.  determining
geographical  positions  at  which  changes  in  course  are  necessary.
2.2  Determining  the  route,  i.e.  connecting  the  route  as  well  as  determining  set  course
and  distances  between  way  points
2.3  Determining  the  speed/time  profile:  fixing  set  speeds  for  the  individual  sections  of
the  route  and  determining  expected  arrival  or  passage  times  for  selected  positions. ­