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APPLICATION OF DEM TO THE DESIGN OF HIGHWAY

ZHANG Yao-bo ( Fundamental Surveying and Mapping Information Center of Anhui Province, Hefei 230031, China )  
With the aid of Digital Elevation Model (DEM) and Arc Macro Language (AML), the author has studied some issues concerning the drawing of sections, the calculation of earth excavation and filling and so on in highway design and construction by using methods for spatial analysis, then established the design and application model system for Xuan-Wu expressway
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