Abstract:Based on geographic information system(GIS) software platform, using the space information display and data management technology, the digital management system of the airport airfield operation is studied, which includes the evaluation of airport clearance management, evaluation of airport pavement management and the airfield underground pipeline management. In the clearance evaluation management system, through coordinate transformation, clearance limit surface 3D scene modeling, obstacle evaluation algorithm research, two aims are realized, i.e., the obstacle 3-D visualization management and evaluation based on geographic information, and aircraft into and out dynamic simulation based on flight program. In the airport pavement evaluation and management system, the digitization of the 3D scene and attribute information of the airport pavement, analysis of the attribute information, and the arithmetic research of the performance modules are studied. The system accomplishes four functions as follows: 3-D scene display and feature information inquiry of the airport pavement,PCN and PCI data calculation of airport pavement based on field survey and test data, remaining service life prediction of airport pavement, intelligently providing of maintenance recommendations and aiding in decision-making based on the evaluation results. And the comprehensive airport pavement evaluation and management system is proposed based on space data. In the underground pipeline management system, based on pipelines′ geographic information data, 3-D visualization model is studied, and the 3-D digital query and management of underground pipeline is realized. The proposed system integrates the airport airfield area operation management functions, makes a digital and intelligent management, and provides a powerful guarantee for efficient operation of airport.