Navigation system

摘要

A navigation system includes: a map information acquiring unit 31 for acquiring map information; an HOV lane decision unit 38 for deciding whether an HOV lane is included in a road represented by the map information acquired by the map information acquiring unit 31 or not; a road number processing unit 43 for performing, when the HOV lane decision unit 38 decides that the HOV lane is included, processing of adding information representing the HOV lane to a road number of the road including the HOV lane; and a display processing unit 44 or a voice information unit 46 for causing the road number passing through the processing by the road number processing unit 43 to be displayed on the guide map or output in voice.

主权项

1. A navigation system comprising:
a memory storing a program, and a processor, by executing the program, executes a process including:
acquiring, from a storage device, map information defining links, wherein an HOV lane and an ordinary lane are represented in a single one of the links in the map information, and the map information further indicates whether or not an HOV lane is represented in each of the links,identifying a route for a vehicle to travel,deciding, for each of the links on the identified route, whether or not an HOV lane is represented in the link in the acquired map information,even if branch roads diverging from bifurcation points on the identified route are not on the route, when the bifurcation points are set to need guidance without exception, providing guidance of the bifurcation points, each of the bifurcation points corresponding to a point at which a branch road diverges from an ordinary lane or an HOV lane,for a given HOV lane that is part of the identified route, determining whether or not a branch road diverges only from an ordinary lane represented in the same link as the given HOV lane in the acquired map information, andwhen a branch road is determined to diverge only from an ordinary lane represented in the same link as the given HOV lane, suppressing guidance of the bifurcation point corresponding to the point at which the branch road diverges from the ordinary lane.