城市交通GIS数据建模中的语义关系研究  

A study on the semantic relationship of urban transportation GIS data modeling

作　　者：谭建军[1] 陈少沛 李英远 

机构地区：[1]中国科学院广州地球化学研究所,广州510640 [2]中国科学院研究生院,北京100049 [3]广州中科盛博信息技术有限公司,广州510630

出　　处：《测绘科学》2009年第S2期14-17,共4页Science of Surveying and Mapping

基　　金：广东省自然科学基金自由申请项目(7006314,9151064004000007);中国科学院资源与环境信息系统国家重点实验室开放研究基金资助项目(A0717)

摘　　要：传统交通地理信息系统(GIS)数据模型主要侧重表达交通网络地理特征的几何成分,其语义关系和内部关系往往不被重视,一定程度影响了GIS的空间分析能力,难以进行较高层次的空间分析和直接提出决策方案。本文建立交通GIS数据建模中的语义关系,并应用统一建模语言(UML)进行描述。新的建模框架为交通对象描述,以及交通对象和网络之间的复杂关系表达提供一致性空间和语义信息。城市交通网络的语义信息使得GIS应用与主题、空间和时间特性和关系相兼容,使得交通GIS数据建模方法以更为完善和无缝使用耦合方法表达交通网络的拓扑结构。Traditional transportation GIS data model focuses on the representation of geographical features' geometric characteristics of transportation networks,but the semantic relationships and internal connections are usually ignored,this give the negative impacts on GIS spatial analysis capabilities.As a result,transportation GIS is built as a spatial data store and management system without robust analysis capabilities.This implies that it is difficult to implement high-level spatial analysis,and direct right decision making.Therefore,the research proposed in this paper builds the semantic connectivity of transportation GIS data model,and applied and extended the unified modeling language(UML)to describe the semantic relationships.The newly modeling framework provides the consistent spatial and semantic information to describe transportation objects and the comprehensive connectivity between objects or networks.The semantic information of urban transportation network leads to the compatibility of GIS applications and the theme,spatial and temporal characteristics of transportation objects and networks.This implies that the transportation GIS modeling methods can be better and seamless to use coupling methodology to represent the topological structure of transportation networks.

关 键 词：交通地理信息系统 GIS数据模型 语义关系 统一建模语言(UML) 

分 类 号：P208[天文地球—地图制图学与地理信息工程]