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On Real-Time Distributed Geographical Database Systems

Author

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  • Choy, Manhoi
  • Kwan, Mei-Po
  • Va Leong, Hong

Abstract

Advanced Traveler Information Systems (ATIS) under the intelligent Vehicle Highway Systems (IVHS) context require efficient information retrieval and updating in a dynamic environment and at different geographical scales. Some problems in ATIS can be solved based on the functionalities provided by GIS systems. However, extra requirements such as real-time response are not readily met in existing GIS systems. We investigate the use of GIS-based systems for applications in ATIS and we propose a new system architecture based on existing GIS technology and distributed computing technology. Issues on data modeling, data representation, storage and retrieval, data aggregation, and parallel processing of on-line queries in the proposed GIS-based systems are discussed.

Suggested Citation

  • Choy, Manhoi & Kwan, Mei-Po & Va Leong, Hong, 1994. "On Real-Time Distributed Geographical Database Systems," University of California Transportation Center, Working Papers qt6p48v7r1, University of California Transportation Center.
    • Handle: RePEc:cdl:uctcwp:qt6p48v7r1
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    Social and Behavioral Sciences;

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