| 摘要 |
A navigation system includes a map data acquiring unit for acquiring map data defining two types of lanes, shifting between which is regulated, in a single link; a driving link deciding unit for identifying a link of a driving lane of a vehicle according to the map data acquired by the map data acquiring unit and according to position information about the vehicle; a freeway infrastructure acquiring unit for acquiring, from node information of the map data, freeway infrastructure data indicating a freeway infrastructure which is accessible by the vehicle from the driving lane including the link identified by the driving link deciding unit; a freeway infrastructure storage unit for storing the freeway infrastructure data acquired by the freeway infrastructure acquiring unit; and a freeway infrastructure display unit for displaying the freeway infrastructure data stored in the freeway infrastructure storage unit. |
