空间、属性、时间是地理现象的三个基本特征或地理信息系统数据库的三种基本数据成分。
Space, thematic attribute and time are the three basic characteristics of geographical phenomena or the essential data types of GIS database.
从而，在现有地理信息系统平台基础上开发与研制带有时间维的地理信息系统势在必行。
Thus, to develop geographical information system with time dimension on the base of current GIS platform is very imperative.
随着地理信息的数据量急速增长，特别是时间维度的广泛使用，人们开始了对时态地理信息系统的深入研究。
With the dramatic increase of geographic information, especially the wide use of time dimension, human began to make scientific researches on Temporal GIS.
时态地理信息系统(TGIS)是一种存储并处理地理实体或现象随时间变化信息的地理信息系统。
TGIS (Temporal geographic information System) is a kind of GIS for storing and manipulating the information of geographic phenomenon along time.
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.
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.
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