Land vehicle multiple navigation route apparatus (10) includes a computer (11) for calculating at least first and second navigation routes (1, 2, or 3) between start (72) and destination (73) locations. Both routes are preferably visible to the vehicle operator at the same time along with route criteria...http://www.google.com.au/patents/US5220507?utm_source=gb-gplus-sharePatent US5220507 - Land vehicle multiple navigation route apparatus
