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approaching one of these points, and an extra alert warns you if you exceed the given
speed limit while approaching.
Visual warning: the type of the Alert Point, its distance and the related speed limit
appear on the Navigation view while you are approaching one of these locations.
For some of the Alert Points, either the enforced or expected speed limit is available. For
these points, the audio alert can be different if you are below or above the given speed limit.
Only when speeding: The audio alert is only played when you exceed the given speed
limit.
When approaching: The audio alert is always played when approaching one of these
Alert Points. In order to draw your attention, the alert is different when you exceed the
speed limit.
Note!
The warning for road safety cameras is usually disabled when you are in a country
where road safety camera warnings are prohibited. Make sure that using this
feature is legal in the country where you intend to operate. Use it on your own
responsibility.
4.1.4 Route calculation and recalculation
A route is a sequence of route events, that is, manoeuvres (for example, turns and
roundabouts) to reach the destination. The route contains one starting point and one or more
destinations. The starting point is the current (or last known) position by default. If you need to
see a future route, the starting point can be replaced with any other given point. See page 42.
Once the destination has been selected, Alpine Navigation System calculates the route based
on your preferences. These preferences are the route planning method, the vehicle type, and
the road types used or avoided when calculating the route. For detailed information on all the
preferences, see Route preferences settings, page 65.
Real-time traffic events are also taken into account, which sometimes greatly modify the
route. See page 58.
Alpine Navigation System automatically recalculates the route if you deviate from the
proposed itinerary.
If traffic services are enabled, Alpine Navigation System considers real-time dynamic traffic
information in route calculation and may also recalculate the route if the traffic situation
changes during navigation.
Intelligent data (captured historical speed information based on probe data) is used for
optimal routing depending on the day of the week and time of day. Route segments where
traffic flow is typically slow at the given time of day and day of the week are avoided if a
suitable alternative can be found. When calculating the optimal route, the data relevant for the
time of the estimated arrival of the vehicle at the given route point is taken into account. As a
result, Alpine Navigation System may suggest a different route during the weekday rush
hours, especially in major cities with frequent traffic jams. See page 58.
