Research on geo-hazard appraisal and decision in highway based on GIS Technology

On account of the special landform, geology and rainfall condition, Tianshan Mountain influences the traffic normally. It often comes under bedload, coast, dilapidation at one time. This threatens the stability of the road and the security of denizen along the line. It is especially importment of the Geological disaster decision-making sustain Geography Information System in Tianshan Mountain bring to bear the advanced technology, which sustains in the build and manage of Tianshan Mountain. After analyzing the on the theory of geological hazard about Tianshan road in detail, collected the datum of basic geography and geology along the lines of road in the past, and also contrasted the locale results and remote sensing images, building and consummating both the Geography database and the geological hazard database based the platform of ArcGIS after according synthesizing, coordinating, choosing, concluding and changing by the rules of database. Asked on the ArcEngine platform, developing a set of collections foundations data gathering, the memory, the management, the retrieval, the graphic editor, the space model analysis, the line region stability assessment, the highway alignment route selection as well as the three dimensional route flight achievement graph production and the output is a body “The Tianshan highway geohazard stability appraisal and the route selection optimization analysis system”.