Operation Manual

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4.1.8 Stored and online traffic information in route planning
The recommended route is not always the same between two points. Offline statistical traffic
information (historical traffic data or traffic patterns) can be taken into account in the route
calculation based on the time of day and the day of week whenever suitable data exists. In
addition, real-time traffic information (TMC) can help you avoid current traffic events like
temporary road closures or a traffic jam caused by an accident. Both functions are subject to
data availability.
Smart Routes with stored statistical traffic information
If statistical traffic information is stored with the map data, the software can take them into
account when planning a route. In normal cases, these statistics help you avoid usual traffic
jams on the given day of week in the given hour but in some cases like on public holidays
that fall on normal weekdays, they can be misleading. You can disable this Smart Route
feature in Traffic settings (page 73).
Real-time traffic information (TMC)
Unlike statistical traffic information, TMC (Traffic Message Channel) can provide you with the
real-time status of the traffic. Route calculation can avoid road blocks or unexpected traffic
jams caused by an accident.
Note!
This feature is available only if your hardware supports TMC.
TMC is a specific application of the FM Radio Data System (RDS) used for broadcasting real-
time traffic and weather information.
Using traffic information is enabled by default in the software.
Note!
TMC is not a global service. It may not be available in your country or region.
Ask your local dealer for coverage details.
Your device may contain the TMC receiver that is needed to receive Traffic events. Ask your
local dealer.
If public Traffic data is broadcast at your location, the software automatically takes into
account the traffic events received. You do not need to set anything in the program. The
receiver will automatically search the FM radio stations for TMC data, and the decoded
information will immediately be used in route planning. The moment your software receives
traffic information that may affect your route, the program will warn you that it is recalculating
the route, and navigation will continue with a new route that is optimal considering the most
up-to-date traffic conditions.
To fine-tune this recalculation, you can set the minimum delay that can trigger a route
recalculation, or you can instruct the software to have you confirm the new recommended
route before it takes effect. You can do these in Traffic settings (page 73).
A special
icon (
) is displayed on the Map screen to show you whether traffic events are
received. The icon shows the status of the traffic receiver when there are no traffic events on
your route, otherwise it shows the type of the next traffic event on your route.
Road segments affected by traffic events are displayed with an alternate colour on the map,
and small symbols above the road show the nature of the event: