The present invention is adapted to a navigation device which performs 3 dimensional display when approaching an intersection. The navigation device of the present invention comprises a map database which stores a number of vehicle lanes of a road which enters an intersection, a road width display database which decreases each vehicle lane width and increases the width of the total road depending on a number of vehicle lanes on a road, a road width display data extraction portion which extracts a number of vehicle lanes of a road which enters a corresponding intersection from a map database when approaching an intersection and which extracts road width display data corresponding to an extracted number of vehicle lanes from that road with display database a display which carries out display based on said extracted road width display data. In this way, it is easy to directly understand the number of vehicle lanes and such a display is easy to view.