County Road Network Layout Adjustments Based On GIS Database

Continued rapid development of modern society and economy inevitably bring opportunities to the transport sector reform and development. Department of Transportation to make reasonable adjustments to the layout after the existing national and provincial trunk highway network assessment. On this basis, the attendant will have to be assessed and re-layout of the county road network.GIS database technology is getting mature, and used widely.this paper ARCGIS software-related technical, analytical methods to assess the characteristics and road network layout adjustment county road network, the integration of GIS technology as a tool for the county road network planning.This article combines ARCGIS technology, analysis and evaluation method county road network characteristics and layout adjustment,integrate GIS technology as a tool for the county road network planning.In the layout adjustment, try to find a reasonable and efficient way to adjust, and reasonably predict the size of the road network;Understand the characteristics and principles of the road network layout, and then get a contour data of plan areas through GIS technology, establish DEM;Combine three-dimensional terrain and economic nodes to get regional lines,Established node importance methodTree for solving modulein the software, automated calculations and wire mesh generation, providing tools for layout adjustment.Then based methods discussed herein do the actual application operation, relying Ningbo county road network layout adjustments, verify the feasibility of the operation provided.