| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for always displaying excellently a road section where traffic information such as one-way traffic or the like is imparted, even when map information display is changed on a screen of a map display device. SOLUTION: When the road section where one-way traffic information is imparted is partially protruded from the map display screen by the change of the map information display on the screen of the map display device, an identification mark of one-way traffic is imparted on a part where boundaries of the road section and the map display screen cross each other. The function is performed by an image formation part 6 for processing the map information into image information. |
