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城市交通路网模型的更新方案与实现
引用本文:陈燕,刘春,辛飞飞,林航飞. 城市交通路网模型的更新方案与实现[J]. 交通与计算机, 2010, 28(4): 39-42,48
作者姓名:陈燕  刘春  辛飞飞  林航飞
作者单位:[1]同济大学测量与国土信息工程系,上海200092 [2]现代工程测量国家测绘局重点实验室,上海200092 [3]同济大学交通工程系,上海200092
基金项目:致谢:本文的工作得到了杭州市智能交通信息平台(一期)示范工程项目的支持,并感谢杭州市交通研究中心工作人员的协助和有建设性的建议.
摘    要:
根据T-GIS空间数据的要求,采用非平面数据模型来表达交通路网模型。为保证路网空间数据的现势性,根据路网的组成要素以及要素之间的逻辑关系,确立了路网数据的更新方案及流程,分别对空间数据和非空间数据提出了不同的更新方式。并设计了数据库更新软件,该软件以某城市路网为例,验证了路网更新方案的可靠性和高效性。

关 键 词:T-GIS  路网模型  路网更新

Method and Implementation for Updating of Urban Road Network
CHEN Yan,LIU Chun,XIN Feifei,LIN Hangfei. Method and Implementation for Updating of Urban Road Network[J]. Computer and Communications, 2010, 28(4): 39-42,48
Authors:CHEN Yan  LIU Chun  XIN Feifei  LIN Hangfei
Affiliation:(Department of Surveying and Geo-informatics,Tongji University,Shanghai 200092,China)1(Key Lab of Modern Engineering Surveying,SBSM,Shanghai 200092,China)2(Department of Transportation Engineering,Tongji University,Shanghai 200092,China)3
Abstract:
Non-planar data model is applied to urban road network,which can meet the requirements of T-GIS spatial data.Various elements of the road network are described.Based on their logical relationship,different methods to update spatial data and non-spatial data are designed to keep the T-GIS spatial database in real-time.Due to the flow of road network renewal method,the software is programmed to automatically update the database.As a certain city's road network for experiment,the reliability and efficiency of the method of the road network renewal is verified.
Keywords:T-GIS  road network model  road network updating
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