| 摘要 |
PROBLEM TO BE SOLVED: To perform navigation utilizing an unregistered road such as wide-area map display or long-distance route calculation by determining a hierarchy to be added or updated corresponding to the state of the unregistered road or a user's intention.SOLUTION: This map information processing device 1 includes: a map information storage part 11 for storing map information to which detected road information of an unregistered road is added and updated; an addition updation hierarchy determination processing part 118 for determining the state of a road unexisting in the map information based on position information of the unregistered road, and determining one or more hierarchies to which the road information of the unregistered road is added and updated corresponding to the determination result; and an unregistered road addition updation part 117 for adding and updating the road information of the unregistered road in each hierarchy of the map information stored in the map information storage part 11, relative to one or more hierarchies which are determined. |
