TECHNIQUE FOR STRUCTURING A NAVIGATION DATABASE

摘要

PROBLEM TO BE SOLVED: To provide a database structure with increased flexibility for efficiently addressing navigation data.

SOLUTION: There is provided a technique of structuring a navigation database. The navigation database includes at least route link data for a predetermined geographic area. An implementation method for the technique includes the steps of: organizing route link data associated with the predetermined geographic area into at least one routing cluster; providing the at least one routing cluster with a cluster identifier; and storing the at least one routing cluster with the cluster identifier in the navigation database.

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