| 摘要 |
<p>A navigation device for making a three-dimensional display when the car equipped with the navigation device approaches an intersection, which is provided with a map database containing the numbers of lanes of roads which meet at the intersection, a road width display database containing data for decreasing the lane widths and increasing the widths of the roads in accordance with the numbers of lanes of the roads, a road width display data extracting means which extracts the numbers of lanes of the roads which meet at the intersection from the map database and extracts road width display data corresponding to the extracted numbers of lanes from the road width display database, and a display means which makes a display in accordance with the extracted road width display data. This device permits the number of lanes to be recognized intuitively and the display to be easily watched.</p> |
