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Study on the Traffic Data Organization of Changchun City Based on Geodatabase Data Model

Author: YiWeiHong
Tutor: ZhangHongYan
School: Northeast Normal University
Course: Cartography and Geographic Information Systems
Keywords: Changchun City Traffic Data Organization Geodatabase Data Model Object-oriented Topology Geometric Network Relationship class
CLC: U12
Type: Master's thesis
Year: 2005
Downloads: 279
Quote: 5
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Abstract


The rise in recent years, object-oriented thinking of GIS and its various applications are extensive and far-reaching impact, and object-oriented data model Geodatabase ArcGIS8 proposed GIS data organization has gone through a major reform. Topics of this thesis using ArcGIS9.0 the geodatabase data model to organize the traffic data in Changchun City, first introduced in the preamble of the composition and the course of development of geospatial data model, object-oriented data model Geodatabase, which leads to this article basis and significance. This thesis is presented in the second chapter to establish the framework of the overall outline of the object-oriented traffic database, in the integrated control GIS expression contained in the content and presentation of the way of the world and traffic data based on the combination of the ideas and methods of the object-oriented organization, proposed Changchun City traffic data organization and management of the basic ideas and database technology roadmap, the final form of the Changchun City traffic data organization and management framework. The third chapter of this thesis the core and key, four aspects of data validation, data quality, the realization of the geometric network traffic and reality reflected a more comprehensive exploration and research, forming a unique traffic data organization solutions . Geodatabase data model organization ideological and organizational Changchun City traffic data in the discussion on the basis of existing data problems, the combined use of data validation rules to ensure the validity of data, including the attribute domain rules, relationship rules topology and its rules to ensure data quality and connection rules three; introduced the basic content of the topology and 26 kinds of topology rules and its application; geometric network to achieve the implementation of the transport network, including the use of linear referencing and dynamic segmentation technology to organize the transportation network data query traffic data organization and transport network is of great significance; relationship class to implement in the real world the true relationship between the traffic data. The geodatabase data model and GIS data model is compared, respectively, from the ideological framework of data organization, data quality, data integration and reality reflect the four aspects of a comparative analysis pointed out that the advantage of the geodatabase data model to organize the traffic data. Finally, the paper summarizes the features and benefits of the geodatabase data model and on its basis Changchun City traffic database, summed up the inadequacies of the paper and the geodatabase data model applications in other industries Prospects.

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