线性参照系统在上海市公路设施管理地理信息系统中的应用

The Application of Linear Referencing System in Shanghai GIS-Highway Infrastructure Management System

线性参照系统在GIS-T中提供了一种数据集成与共享的方法,可实现多种线性参照方法间的相互转换及在任意比例尺的地图上进行绘图显示。上海市公路设施管理地理信息系统采用了线性参照系统的概念对数据进行了组织,建立了基线网及相应的应用层。对线性参照系统在上海市公路设施管理地理信息系统中的应用情况进行介绍,提出了系统进一步完善的建议。

Linear referencing system （LRS） provides the fundamental reterencing space tor transformation among various linear referencing methods （LRM） and supports multiple cartographic representations （ at any scale）, which presents a good way of integrating and sharing data in GIS-T. The concept of linear referencing system is applied in Shanghai GIS-Highway Infrastructure Management System （SHGISHIMS） to organize data and set up the datum and the network. The application of linear referencing systems in SHGIS-HIMS and the suggestions for improving it are also given here.