【摘要】 讨论了交通地理信息系统的基本概念、数据模型和空间分析功能 ,并结合具体开发实例 ,探讨了多种查询手段的综合应用、道路里程桩号系统和道路描述系统等问题更多还原

【Abstract】 Geographical information system for transportation (GIS-T) has been widely used in the designing and management of roads network and other facilities. The principles, methodology, data models and spatial analysis of GIS-T are introduced in detail. The principle of arc node topological relation and dynamic segment are expatiated by a development instance. Some problems, such as building multiple query, the mileage mark system and the road descriptive system are discussed at the end of the thesis. The application of GIST showed that it would greatly improve the convenience and efficiency of the transportation profession.更多还原