12. ROUTES
12-14
7. Click the [<<] button to insert the waypoint(s) from the inactive route to the active
route. In the example below, WPT1 of the inactive route is inserted at the end of
the active route, becoming its waypoint 5.
8. Click the [OK] button to finish.
12.7 Route Optimization
12.7.1 Available route optimization strategies
After all waypoints are inserted, the route is optimized from the [Optimize] page in the
[Route Plan] dialog box. If no optimization strategy is selected, the optimization is
done with "max. speed," defined in ship parameters. Optimization calculates all pa-
rameters for route steering (course and distance between two waypoints, maneuver-
ing start point, WOP, etc.). There are four methods for optimization:
[MAX speed]: This calculation uses the maximum speed defined in the ship parame-
ters and multiplies by all reduction factors (weather, ice, fouling, etc.) together with
speed limits given for each waypoint to generate ETA. ETA may be entered, however
it is calculated with user-entered ETD and speed limit.
[Time table]: Calculates the speed required in order to arrive at destination at required
ETA. Maximum speed is never exceeded. The user enters ETD and ETA to calculate
speed to use. If, the user-entered ETA is earlier than that found with the Max. Speed
calculation, the Max. speed -calculated ETA will be indicated below the Time Table
ETA calculation figure. The calculated speed is shown on the [Route Information] box
as [Plan Speed].
[MAX profit]: Based on ETD, this calculation takes in account the fuel cost and the
fixed cost of the ship and calculates the most profitable speed (highest profit per time
unit).
[MIN cost]: Based on ETD, this calculation takes in account the fuel cost and the fixed
cost of the ship and calculates the speed that gives the minimum total cost. You need
to set [Cost Parameters] beforehand to use this feature.
Route1
Route2
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