BRANCH GUIDE DEVICE AND GUIDE MAP CREATING DEVICE

摘要

PPROBLEM TO BE SOLVED: To display a guide map of an appropriate branch point and to prevent an accident that a driver cannot specify the traveling direction or mis-recognizes the traveling direction, in a branch guide device for guiding the traveling direction at the branch point. PSOLUTION: When the distance between an objective branch point and an adjacent branch point is a determination distance or shorter and it is determined that the road is smoothly branched at the adjacent branch point, a branch pattern diagram including the objective branch point and adjacent branch point is created as the guide map for guiding the traveling direction when a vehicle approaches the objective branch point from the approach direction, and is stored in a storage medium. When it is determined that one's own vehicle is within a predetermined distance Bm before the branch point to be guided during guiding the travel route by route guide processing, the branch pattern diagram of the objective branch point is extracted from the branch pattern diagram stored in the storage medium, and is displayed on a display device 20. PCOPYRIGHT: (C)2008,JPO&INPIT