Highway Basic Data Management And Application Based On 3DGIS

As one of the major transport infrastructures in our country, highway is the lifeblood of economic development. In recent years, the highway construction has developed rapidly in our country, by the end of 2015, the highway mileagein Chinahas reached 125373 kilometers, ranking first in the world.In the course of highway’s design and construction,a lot of basic data were left,which can provide great convenience for the highway’s later operations and management. However, the existing methods of highway data management can neither adapt to the development of highway nor meet the requirement of information service,what the paper focuses on is how to manage and make the further application of these basic data by using the 3DGIS technology.Firstly, the paper analyzes the multi-source data of highway and puts them in order, then completes the classification and coding of the highway data according to the national standard. Secondly, based on the characteristic of highway mileage and three dimensional modeling task, the paper studies the three dimensional modeling method which the 3D models of roadbed, bridges and tunnels are automatically generated by using the highway center line coordinates and cross-sectional information. This method will improve the efficiency of constructing three dimensional scene. Finally, according to the features of highway’s spatial linear distribution, the highway basic information database is constructed. Combining the road property information with geospatial information and employing the secondary development environment provided by Super Map and Skyline, the “highway basic data management and application 3DGIS system” comes into being with the tool of C# program language. The system realizes the three dimensional expression of highway and its subsidiary facilities, and its query and analysis capabilities can meet the demands of highway basic data management.The paper associates the highway damage data with design data through the stake number of highway and analyzes the factors about highway diseases by using the method of association rules and finally finds out the connection between design data and diseases of highway, which will provide support for management decisions.