基于地理信息系统的公路设施空间数据库概念模型

GIS-based highway facilities spatial database conceptual model

应用实体—关系 (E- R)数据库概念模型设计工具 ,通过对公路设施数据库特性、实体组成及实体间关系的深入研究 ,建立了一个比较完整严密的基于地理信息系统的公路设施空间数据库概念模型 。

This paper sets up an integrated highway facilities spatial database conceptual model through analyzing highway facilities specific property,the composition of highway facilities' spatial entities and the relationships among them,utilizing E R(Entity Relationship) diagram.This will help to lay a theoretical foundation of applying GIS technology in highway facilities management.