A lot of cities in the US follow the following pattern, numbered streets run north and south, named streets run east and west. In Phoenix, for example, there's central avenue, then as you drive west you intersect with 1st Avenue, 2nd Avenue, 3rd avenue, etc. Driving east intersects with 1st Street, 2nd Street, 3rd Street and so on.
As for the named streets, the standard conventions have been mentioned: President's names, Tree names, flower names, names of family members, names of cars you like, names of ocean liners, musicians. Pick something you like and dedicate those streets to it.
Also in the US the interstate highways are numbered odd for those that run north-south (with the lower numbers on the west coast and getting larger as you move east), and even for those running east-west (with the lower numbers in the south and increasing as you move north).
