介绍的公路交通事故救援系统是一个集数据通信、数据库和地理信息系统为一体，并具有一定智能决策指挥功能的综合性集成系统平台。
This paper introduces an integrated platform in which data communication, database and GIS are integrated into one accident emergency rescuing system. The system has intelligent decision functions.
接下来的内容里研究了交通地理信息系统的关于数据库的两个问题，即如何从大量的数据信息中提取有效信息和如何表达交通信息的时间特性这两个问题。
The focus of the research into new GIS-T database is the management of temporal and history data and information that comes from many kinds of resource and services for all kinds of users.
车辆定位监控系统集gps定位技术、GIS地理信息系统技术、数据库技术及通信技术于一体，是智能交通系统的重要组成部分。
Integrated with GPS, GIS and the technology of database and communication, vehicle monitoring system is one of the most important part of ITS.
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