GF82.61-P-3011SKJ Route Calculation, Function

GF82.61-P-3011SKJ Route Calculation, Function
- with CODE (498) Japan version


After the destination has been entered, the route is calculated and constantly updated by the navigation processor of the COMAND operating, display and control unit (A40/3). This can only be calculated within the digitalized map areas. The calculated route is the prerequisite of the destination guidance system.
The navigation processor of the COMAND operating, display and control unit (A40/3) calculates the route with the aid of the Digital Versatile Disk (DVD) map data and the current position. When making the calculations, it takes the roads and attributes that are read from the DVD-ROM map into consideration (e.g. one-way streets).

Selectable route calculations
^ Fastest route
^ Shortest route
^ Dynamic route

When the "dynamic route" is being selected, the traffic messages received by the Vehicle Information and Communication System (VICS) are stored and automatically taken into consideration in route calculation with the aid of an FM multiplexer that is integrated in the COMAND operating, display and control unit (A40/3). The route is then calculated with the optimum time, in a manner similar to the "Fastest route" option. Notification that the route has been recalculated taking traffic messages into consideration, is provided. The navigation processor of the COMAND operating, display and control unit (A40/3) makes up a list of streets and junctions to be driven after the route has been calculated. This route list is used for destination guidance. It may also be displayed by calling up the "Information" menu.

For the route calculation, the following stretches can be blocked from the route calculation:
^ FREEWAY
^ Ferry, car loading
^ Toll road
^ Tunnel

The navigation differentiates between:
^ Main and intermediate destinations of a trip (driven to directly)
^ Via destinations

Via destinations
The entry of a via destination always refers to the road network. All the streets available in this network can be selected as via destinations. The via destinations are not driven to directly, i.e. the function is restricted to the highway network. The selection is always made via the map. A town or other indexed destination can also be entered and the map branched to under the control of the COMAND operating, display and control unit (A40/3).

With a via destination, the route calculation takes place to the next main destination taking the via point into consideration.

Route updating
If the driver deviates from the calculated route, the navigation processor of the COMAND operating, display and control unit (A40/3) calculates a new route list. When doing so, the current position and the direction of travel are taken into consideration. The new route is optimized accordingly.

Trips outside the digitized map area
If the vehicle leaves the digitized DVD map area (e.g. driving into a multi-level car park), no route can be calculated or updated. "OFF ROAD" appears on the display of the COMAND operating, display and control unit (A40/3). Upon leaving the map boundary (e.g. foreign country), the message "OFF MAP" appears. Destinations which lie outside of the digitalized map area cannot be taken into consideration on calculation of the route.