TRAFFIC DATA MANAGEMENT SYSTEM, ESPECIALLY PROCESSING HETEROGENEOUS TRAFFIC DATA

摘要

PURPOSE: A traffic data management system is provided to reduce data processing load by differentiating identical data contents contained in heterogeneous traffic data from each other. CONSTITUTION: A first processing unit(11) identifies data items of first and second traffic data. Thus, the data items of the first and second traffic data are identified. A second processing unit(12) differentiates identical data contents contained in the first and second traffic data of which data structures are identified by the first processing unit. Therefore, the first and second traffic data are discriminated by a navigation system(30). the second processing unit assigns an identifier to the second traffic data as a second identifier that is different from a first identifier contained in the first traffic data.