Several Critical Issues of the Gis Architecture for Chinese Railway
نویسندگان
چکیده
The significant function of GIS technology in promoting the railway development in this information era is now attracting great attention from the Ministry of Railway and the State decision-making institutions of the P.R.China. However, until present, the GIS has not been economised on the Chinese Railway. Discussions have been made on the several critical issues in building up the railway GIS. In this paper, the concept of the Basis of Railway Linear Spatial is put forwarded, and the logic model is given on the basis of the analysis on the features of the railway geo-spatial objects. The constitution of the railway spatial database and the features of railway GIS are analysed. The idea for constructing the railway GIS by the means of distributed data models is advanced, and the object-oriented multilevel distributed railway GIS model is presented also. The assumption on the scheme for constructing the Digital Geo-spatial Data Framework of the railway GIS is expounded. It is shown that this paper has a positive influence on the preparation for the “Overall Program of Railway GIS” which is under processing.
منابع مشابه
Geographic Information System for Railway Management
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