The road traffic safety system of the whole nation or a region is a grey system, which could be used to easily ascertain the correlated factors of road traffic accidents.

全国或某一地区的道路交通安全系统是一个灰色系统，可应用灰色关联分析法方便地确定影响交通安全的主要相关因素。

youdao

Administrative departments of education and schools shall incorporate education in road traffic safety into education in the legal system.

教育行政部门、学校应当将道路交通安全教育纳入法制教育的内容。

youdao

Accordingly, it provides partially safety management with scientific elements insures that can make full use of the function of road traffic system.

从而为交通安全管理提供了决策的科学依据，确保道路交通系统的安全功能得到充分发挥。

youdao

The traffic system is designed to improve road safety and assist people as they cross the road following three deaths in the past three years.

BBC: Traffic light in Shinfield Road