The technology of spatial query and analyse is one of the key points in the development of Geographical Information System (GIS).
空间查询分析技术是地理信息系统研发中需要解决的核心技术之一。
GIS is a kind of information system which takes geographical data as the center, computer softerware and hardware as the platform, and spatial location related query as the motive.
地理信息系统（GIS）是以地理信息数据为中心、计算机软硬件设施为平台、空间位置密切相关的信息查询分析为目的信息系统。
The intelligent query system of the city traffic route is implemented at last by use of artificial intelligence, geographical information, multimedia technology, and so on.
运用人工智能、地理信息、多媒体等技术，实现了城市交通的智能咨询。
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