7.1.3
Checking the voyage plan
7.1.3.1 Checking the route
Functionality level 1
Functionality level 2
Function
Input information
Output information
1. Check geographical
conditions
1.1.1 Record data and
criteria
• Orderly way point list and con
necting route sections
• Geographical information
• Hydrographic information
• Expected draught of ship
• Ship dimensions
• Representation of track calculated on the surrounding
geographical situation
• Selection of the relevant geographical information
• Relevant hydrographic information
• Selection of relevant ship data, eg maximum width,
overall height
1.1.2 Compare data and
criteria
« Result information from 1.1.1
• Difference between geographical conditions expected
(eg channel widths, water depths) and space require
ment of ship
1.1.3 Assess result of
comparison
• Result information from 1.1.2
• Statement whether the geographical conditions ex
pected are permissible
• Representation of “critical areas”, stating cause
1.1.4 Provide result of
comparison
• Result information from 1.1.3
• Provision of critical areas determined and their causes,
for revision of the original route data
2. Check meteorological
conditions
2.1.1 Record data and
criteria
• Orderly way point list and con
necting route sections
• Expected passage and arrival
times
• Meteorological information
• Ship’s load status and stability
• Economic criteria (eg fuel con
sumption)
• Information on bad weather regions, expected wind
and visibility conditions along the planned route at the
planned future times
• Limit values for acceptable weather conditions, taking
into account load status/stability of ship
• Limit values for weather conditions taking economic
criteria into account
2.1.2 Compare data and
criteria
• Result information from 2.1.1
• “Difference” between meteorological conditions ex
pected and acceptable conditions