Route calculation, function - GF82.61-P-3011GI

MODEL 163 as of 1.9.01 with CODE (522) Modular control system (MCS) radio USA with CODE (357) Navigation system - additional unit with CODE (818b) Single CD player - additional unit with CODE (491) U.S. version 

The route is calculated and updated continuously by the navigation processor after entering the destination on the radio and navigation module (A2/56)  It can only be calculated within the digitized map area. The calculated route is the prerequisite of the guidance system  .

Route calculation 

The navigation processor  calculates the route with the aid of the CD-ROM  map data, the entered destination and the momentary position. When calculating it considers the roads and attributes such as one-way streets, turning prohibitions, street classes,....(if present) read in from the CD-ROM  map. Thereby it is possible for the user to determine in which way the route is to be calculated:

• Maximize freeways 
• Shortest route 
• Minimize freeways 
• Minimize toll roads 

Following route calculation the navigation processor  sets up a list of the roads and junctions to be taken. This route list is used for guidance. It can be displayed by calling up the menu " LIST  ".

• Route updating

  If the driver deviates from the calculated route, a new route list is calculated by the navigation processor. The current position and the direction of travel are taken into consideration, and the new route is optimized accordingly. If the driver wants to deviate from the route, the calculation processor calculates a new route by pressing the multifunction key "DETR  " (detour).

On freeways the newly calculated route starts within approx. 5 miles  and on highways within approx. 1 mile  ".

• Detouring traffic jams, construction sites with "Avoid Road  " function.

  When approaching a traffic jam, a construction site etc., it is possible to set up a new route calculation detouring the hindrance before the reaching the corresponding route section.

For this purpose press" NAVI MENU  " button. Select "Route" with the aid of the" joystick " and then select" Avoid Road  ". Select road to be avoided in the list displayed then.

If more roads are to be avoided proceed with " Continue to Avoid Roads  ". If the newly calculated route is acceptable confirm with " Reroute  ". Then confirm in " Continue Trip to  " menu with Enter.