| 摘要 |
PURPOSE: A navigation using a single street system for a walking route is provided to reflect all base network data for providing a walking route on a single street system and selectively offer POIs necessary for reaching destination based on the integrated single street system. CONSTITUTION: A navigation using a single street system for a walking route comprises a network data generating unit(120), a lane POI generating unit(130), a shortest lane generating unit(140), a cross information generating unit(150), and a route information generating unit(160). The network data generating unit generates data about nodes where single street lines cross each other, lanes with both ends composed of the nodes, and zones that are defined by the lanes. The lane POI(Point Of Interest) generating unit creates a lane POI that a POI, a geographical feature on a walking route, is linked with a lane from information on the zone to which the POI belongs. The shortest lane generating unit creates the shortest lane route by the combination of lanes for the minimum distance from the source to the destination location. The cross information generating unit computes cross between zones required for reaching the destination and extracts a cross POI, that is, a lane POI corresponding to the computed cross, from lane POIs existing in the lanes constituting the shortest lane route. The route information generating unit creates walking route information by arranging the cross POI toward the destination. |
