交通地理信息系统数据模型的研究进展

为了建立更完整、适应面更广和更具时代特征的数据模型，进一步推动交通地理信息系统(GIS—T)数 据模型的发展及其在交通领域的应用，首先从应用的角度简述了GIS—T数据模型的意义及其研究发展的自身特点；然后从传统数据模型、线性定位参照体系，导航数据模型和GIS—T时空数据模型出发评述了国内外GIS—T数据模型的研究进展；最后，阐述了GIS—T数据模型研究发展与网络的密切关系，面向应用及面向技术的特点和在满足导航需要、多维化、时态化及与先进技术整合方面亟待解决的几个问题．

Research Progress on GIS-T Data Models

r setting up more intact and widely used data model with characteristic of the time, promoting the dvelopment of GIS-T data model and the application in the field of transportation, the authors sketch the meaning of GIS-T data model and the characteristics of research progress at first, then comment the progress of domestic and foreign researches on GIS-T data model from the multiphases of the traditional data model, linear location reference system, data model based on navigation and GIS-T spatiotemporal data model, etc, finally explain the close dependence of the progress of GIS-T data model research on the internet, and expound the characteristics of application and technology-oriented, and some problems to be settled in the respects of multi-dimension, tense and combination of advanced technology in order to meet the demand of navigation.