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Research On Data Organization Method In Highway Network GIS And The Optimization Of Transit Route With Many Goals In Highway Network

Posted on:2005-01-05Degree:MasterType:Thesis
Country:ChinaCandidate:Y F MaFull Text:PDF
GTID:2132360122488204Subject:Structural engineering
Abstract/Summary:PDF Full Text Request
Highway Network Geographic Information System (HNGIS) is an applied system, most of which are developed based on GIS platform software. Data organization method is the key to ensure its operation stability and dependability. The inquire function for the optimal route, as one of the important community service expanding functions of HNGIS, has large application meaning for the society. This paper supplies systematic research on data organization method which is suitable for HNGIS, at the same time studies deeply on the optimization of transit route with many goals in highway network.(1)Based on the systematic analysis on the spatial data model and the spatial data structure, through study on two kinds of commonly used GIS data models: raster data model, vector data model and the characteristics of highway network, the paper plans the logistic data model of HNGIS, and proposed the spatial data storing structure based on vector method. This paper develops the particular data organization method of HNGIS. Dynamic Segmentation technology is used to resolve the mutual operation problem between fixed spatial element and abundant attribute data, thus favorable foundation is formed to develop HNGIS with full functions.(2)This paper systematically analyzes the characteristics of traffic transit in highway network, explains the relative problems about inquire for the optimal route in highway network. It analyzes the factors affecting users making choice, determines the choice object of transit route: integrated evaluation system of link impedance is formed. It puts forward synthesis evaluation thought and solution that the user participates in the decision-making, gives the method that can standardizes the evaluation index, and appraise synthetically using AHP, as the result we can get the integrated evaluation value of the link impedance. And then give necessary analysis on Dijkstra arithmetic.(3)On the basis of aforesaid theory, using ArcInfo8.3 as platform, this paper develops TianJin HNGIS, actualizes the basal functions of HNGIS and the inquire function of the optima] route, thus verifies the feasibility of the theory that this paper states.
Keywords/Search Tags:highway, Geographic Information System(GIS), data organization, optimal route, Analysis Hierarchy Process(AHP), ArcInfo
PDF Full Text Request
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