机构地区: 中山大学工学院智能交通研究中心
出 处: 《测绘科学》 2008年第6期192-193,181,共3页
摘 要: 针对指路标志的标识功能,分析了指路标志的特征,提出了指路标志项的概念。基于路网拓扑结构,构建了以指路标志项为基本单元的指路标志标识系统的数据模型,使得在计算机中建立指路标志的信息管理及自动设计分析应用系统成为可能。最后,在此数据模型的基础上,开发了一个基于GIS平台的指路标志标识计算机应用系统。该系统能对指路标志进行自动设计、根据交通规则的修改对指路标志执行自动更新,说明本文提出的数据模型是有效可行的。 Characteristic of road guide sign is analyzed aiming at its designation function. And the concept of road guide sign item is proposed according to that. The data model of guide sign designation system which basic element is guide sing item is built based on the topology of road network. This data model supports the construction of road guide sign designation system, which can design and analyze road guide sign' s layout. Such guide sign application system is developed on GIS platform based on the data model at last. The layout of guide sign can be determined and updated according to the modification of traffic rules automatically in the above system. It proves that the data model presented in this paper is feasible and effective.