Information terminal in the vehicle, generating device for a simplified map display method and display device for a simplified map

The invention relates to an information device for vehicles, comprising a road simplification means for creating simplified roads through simplification of a road map, based on map data; to decide, based on the map data, obe one road is a road with a special shape that has a predetermined particular shape or not a road decision means; a replacement means into a memory (12, 13) stored in advance special road pattern (S) to work for a road that has been judged by the road-judging means when the road with a special shape; and a display control means for displaying on the display device (16) a simplified map which the particular road shape pattern (S), which were used for the roads special shape of the substitute, and contains the simplified roads that have been generated by the road facilitating means ,