Based on MapGIS-TDE platform

aimed to the highway slope model building

the “entity-oriented spatial data model based on feature” which has good adaptability and flexibility is applied to achieve the data organization and storage. Using the survey and design data of highway

the 3D model building methods of the slope surface

ground and underground are presented; the sub-model building methods of the unexcavated slope

excavated road and excavated slope are also discussed for building terrain model. In addition

based on the surface displacement and rainfall monitoring data

3D real-time inquiry and statistics are available to provide real-time analysis for highway landslide monitoring and precaution. The 3D slope model of the Changde－Jishou expressway in Hunan province has been established by this method.