On Real-Time Distributed Geographical Database Systems

Manhoi Choy, Mei-Po Kwan and Hong Va Leong

University of California Transportation Center, Working Papers from University of California Transportation Center

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.

Keywords: Social; and; Behavioral; Sciences (search for similar items in EconPapers)
Date: 1994-01-01
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