The present invention relates to a device and a method for navigating a vehicle along a route from a starting position or an instantaneous position to a destination. To this end, a route calculation device of a navigation device calculates a route course which is composed of a sequence of several coherent...http://www.google.de/patents/US20100312466?utm_source=gb-gplus-sharePatent US20100312466 - METHOD AND DEVICE FOR CALCULATING ALTERNATIVE ROUTES IN A NAVIGATION SYSTEM
