Alpha-nav AN5700NV Manuel d'utilisateur télécharger pdf (Page 66)

5.1.3 Tunnel view

When entering a tunnel, the map is replaced with a generic tunnel image so that

surface roads and buildings cannot distract you.

The top-down overview of the tunnel helps you orientate yourself. The remaining

distance in the tunnel is also displayed.

After leaving the tunnel, the original map view returns. This feature can be turned off

in Settings Page 87)

5.1.4 Route calculation and recalculation

ALPHA-NAV navigation calculates the route based on your preferences:

• Route planning methods:

• Gives a quick route if you can travel at or near the speed

limit on all roads. Usually the best selection for fast and normal cars.

•

Gives a route that has the smallest total distance of all

possible routes. It can be practical for slow vehicles.

• Gives a quick but fuel efficient route based on the fuel

consumption data given in Route settings (page 81). Travel cost and CO2

emission calculations are estimations only. They cannot take elevations, curves

and traffic conditions into account.

• For vehicle types where Green routing is not available, this

method combines the benefits of Fast and Short: ALPHA-NAV navigation

calculates as if it were calculating the Fast route, but it takes other roads as

well to save fuel.

• Results in a route with fewer turns and no difficult maneuvers.

With this option, you can make ALPHA-NAV navigation to take, for example, the

highway instead of a series of smaller roads or streets.

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Alpha-nav AN5700NV Manuel d'utilisateur Page 66