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• Road types used or avoided in route calculation:
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ALPHA-NAV navigation automatically recalculates the route if you deviate from the
proposed itinerary.
For further information about Route settings, see page 76.
5.1.5 Green routing
Route calculation is not only about finding the quickest or shortest route. For some of
the vehicle types, you can also check the fuel consumption and CO2 emission when
planning a route, and you can create cost effective routes with less effect on the
environment.
In Route settings, you can edit the parameters of the selected vehicle. Enter the fuel
consumption values and the price of the fuel. You can also select whether you want to
see the difference between your route and the green route even if the selected routing
method is not Green.
After the above parameters are set, select as route planning method to
get a fast but also fuel efficient route. Note that travel cost and CO2 emission
calculations are estimations only. They cannot take elevations, turns, curves and
traffic conditions into account. Also, this routing is not meant to give you the "green-
est" route of all. It is still important to travel quickly so the result is a fast route with
low fuel consumption and CO2 emission.
With a vehicle type where green routing is selectable, whichever route planning
method is selected, the Green details are also shown when you confirm the route:
If the selected route planning method is not Green, and you have allowed the
application to show the green alternative, the price, fuel consumption and CO2
emission differences between your selected route and the Green route are also
shown on this screen:
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