| Road material is the foundation of highway construction.As a key step of engineerproject construction,road material selection is also key thechnologiy that make constructiongoal able to realize.This paper based on the subject of Guangdong Province RoadConstruction Material Resources and Rational Utilization Study, builded road constructionmatetial GIS system, making A lot of road construction materials scattered informationfocused on a single platform, that will beneficial to investigation and grasp the road matetrialorigin distribution condition when government department are making local materialresources mining decision,and when construction units making construction organizationdesign and so on,so as to make the material selection economic and reasonable.The system design main thought is divided the road building matetial,basic geographicinformation and the relation between data information so on into graphic data and attributedata according to its data character,and then storted in SQL Sever on form of vector data.Thesystem have three layers structure,used C#programming language, based on ArcGIS platformin secondary development, builded data base in the powerful SQL Server, and connected thedata base to system using spatial database engine, it can easily input GIS data, and isconvenient to renew,maintain and query analyse the map and attribution data.The systemmake full use of system analysis and buffer analysis of GIS, realized shortest parth analysisand buffer zone analysis between road and construction material depot, provided basis for theoptimal road material selection and line selection decision.The system useing modular design methods, it consisted of system main interfacemodule, data editing module, query anlysis module, reported generation sub-module, graphicgeneration sub-module, data backup restore module and data output module, differentmodules showed with different views, the conversion between modules realized throughmenu commands. |
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