而交通地理数据库的设计与创建则是研究开发智能数字交通的决定性因素，是GIS应用开发的基础。
As the foundation of GIS-T (Geographic Information system for transportation), GIS-T geodatabase is the critical element of development of intelligent transportation systems.
交通事故的数字与交通量的增长成正比。
The number of accidents is proportionate to the increased volume of traffic.
在西欧大一点的国家以及日本，它们的公共交通更好而人口更稠密，这一数字是600多一点。
In the big western European countries and Japan, where public transport is better and population is denser, the figure is a little over 600.
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