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5 Glossary
Active route
The currently navigated route. Whenever a destination is set, the route is active until 
you delete it or reach your destination. See also: Route.
City Center
The city center is not the geometric center of the city but an arbitrary point the 
map creators have chosen. In cities and villages, it is usually the most important 
intersection; in larger cities, it is one of the important intersections. 
Color theme
The navigation system has different color themes for daytime and nighttime which 
can be selected as desired.
One daytime scheme and one nighttime scheme is always selected for the map and 
for the menus.
The navigation system uses them when it switches from day to night and back.
GPS accuracy
Several factors have impact on the deviation between your real position and the one 
given by the GPS device. For example, signal delay in the ionosphere or re
fl
ecting
objects near the GPS device have a different and varying impact on how accurately 
the GPS device can calculate your position.