A system for supporting to drive cars has a server 10 for processing road
geometry, an apparatus 20 for supporting to drive a car 70, and a computer
network 40 for communicating with the server 10 and the apparatus 20,
wherein the saver 10 provides road parameters and/or road information for
the apparatus 20, and the apparatus 20, placed on the car 70, supports to
drive the car 70 and/or automatically drives the car 70 by using the road
information which includes virtual digital driving orbit (lattice of
coordinate) 60 from the saver 10 and/or calculated by the road parameters,
and GPS (Global Positioning System) information from GPS satellite 50 for
calculating the position of the car 70.