Patent attributes
A navigation system includes a lane information acquiring unit 27 for acquiring both the number of lanes of a road which forms an intersection, and lane information which defines a road branching off from each of the lanes, a lane direction determining unit 28 for determining the direction of each of the lanes on the basis of both the lane information acquired by the lane information acquiring unit, and a road attribute of an incoming road coming into the intersection and a road attribute of an outgoing road extending from the intersection, the road attributes of the incoming and outgoing roads being included in map data acquired by a map data acquiring unit, and a lane information display unit 29 for displaying the direction of each of the lanes determined by the lane direction determining unit with an arrow.
