Abstract: A navigation device in which, in accordance with a scrolling instruction given by a user during display on a first screen, a map image is scrolled along a road on which a vehicle position mark is positioned up to a position in a second screen in which a next main intersection is situated at the center of the screen. Regardless of whether a guide route is set, the map image can be scrolled along the road, and the scrolling is stopped at a main intersection that the user wants to confirm.

Abstract: In a navigation system, a detailed map of an area surrounding the vehicle is displayed in a window on a monitor on the scale designated by a user, and main roads extending outside the map displayed in the window are displayed in a deformed image around the window, so that the map of the surrounding area is displayed in detail, and only the main roads are simply displayed outside the window. This allows the user to grasp detailed information about the area surrounding the vehicle, main roads ahead of the vehicle, and the connections between the vehicle and the main roads at a glance at a single window.

Abstract: A navigation device in which, in accordance with a scrolling instruction given by a user during display on a first screen, a map image is scrolled along a road on which a vehicle position mark is positioned up to a position in a second screen in which a next main intersection is situated at the center of the screen. Regardless of whether a guide route is set, the map image can be scrolled along the road, and the scrolling is stopped at a main intersection that the user wants to confirm.