Research On Digital Airport Pavement Based On GIS

The airport pavement is not only an important part of the airport operation, but also a prerequisite which related to the safety of aircraft movements. With the rapid development civil aviation industry of our country in recent years, flights have been increasing greatly, too many airports are busy with rebuilding projects inordinately. A large number of graphic data will be produced during the process of reconstruction, which can bring much inconvenience for the maintenance and management of airport. The paper puts forward an concept of pavement management information system for the airport, to solve the inconvenience produced by graphic data saved. The paper takes a certain airport in YunNan as example,introduces the overall process of airport pavement management system with the support of civil aviation science funds in China. The primary coverage as follows:1. The 2-D and 3-D models of the airport are made by using the application of geographic information system software called SuperMap, drawing software called AutoCAD and 3-D modeling software named 3Dmax respectively. The real geographic information is given to the established models, and the pavement information with field investigation are stored in the system.2. This system uses a more powerful query interface interaction method to present pavement final query results to the users, such as elements query and the thematic map, which is different from previous similar softwares which are full of dull and boring information query function. It is based on the attribute data of the table, generates corresponding correlation property sheet, and distinguishes between different characters pavement with color.At the same time, the user can click on the three-dimensional entity model in 3D scene, to view the basic features of the selected model. The ability of the human-computer interaction system has been improved effectively by adding of the query functionality.3. The calculation programs of PCN,PCI and remaining service life have been written,which are based on the computing method that of pavement evaluation management technical specification. The calculation procedure, which calculates bending moment influence diagramof the number of grid when wheel at the edge of the plate, can effectively shorten the service life of pavement residual computation time in the final debugging stage, compared with the former programs. The paper has been taken the actual data of the airport for example, the computing results compared with hand calculation are listed, and the calculation results are satisfactory.This system is based on B/S architecture structure. The users can log over the network.Many advantages such as ease of use, low maintenance costs of late have been found in the pavement management system, compared with the former ones. Meanwhile,The realization of the function of the aboveis based on the quadratic function of SuperMap software,Writing in SuperMap software integration through the establishment and calculation of the model,.It can effectively improve the safety and reliability of the system by setting system permissions later.