Abstract: A method and system for managing relationships between location identifiers is disclosed. A relationship includes an originating identifier and a target identifier. A unique relationship is defined by the location codes and relationship types associated with the originating and target identifier. A synonym service, a translation service, and a validation service analyze a new or modified relationship prior to storing the relationship in a relationship store. A graph service, a statistics service, and a reporting service analyze the relationships stored in the relationship store.

Abstract: A method and apparatus for combining two dissimilar road map databases of a given geographic region are provided. The road map database differ in degree of coverage or accuracy of coverage, or both, of the geographic region. Each database includes data defining a plurality of roads. A first set of loops is defined from roads represented in a first of the two road map databases. For each of the first set of loops, a corresponding loop is identified from roads represented in a second of the two road map databases, to define a second set of loops. Each loop of the second set of loops may include one or more links, and each link represents a portion of a road represented in the second road map database. A set of output loops corresponding to the first set of loops is generated to form an output road map database.