摘要
本文通过分析交通网络特性 ,提出了一种适合城市交通网络数据表达与操作、基于完整交通特征的 GIS数据模型 ,以弥补传统基于弧段 -节点的 GIS数据模型在城市交通网络建模中的不足 ,并在此基础上将传统的交通网络平面图表达模式升华到非平面模式 ,设计了基于特征的交通网络非平面数据模型的概念建模与逻辑建模方法 ,为相应的数据结构与数据库实现奠定了基础。
On the basis of analyzing the characteristics of modern urban transportation networks, a data model is set forward to facilitate the GIS expression and operations on the modern urban traffic networks, which is based on the complete transportation features roads and synthetical connective lanes with same directions, and to offset the deficiency of the traditional data model based on the planar topology of arcs and nodes. Furthermore, the author develops a non planar data model of GIS for transportation on the basis of feature based data model put forward, to make it more suitable for traffic network modeling and analysis, and design the methods of conceptual modeling and logical modeling, which provides the basis for the corresponding data structure and database implementation.
出处
《测绘学报》
EI
CSCD
北大核心
2000年第4期334-341,共8页
Acta Geodaetica et Cartographica Sinica
