Once it trickles down into commercial vehicles, it could improve vehicle safety and reduce traffic deaths.

一旦该技术逐渐应用于商用车辆上，就可以提高车辆安全性，并减少交通死亡人数。

youdao

Vehicles can now pass freely below the tracks, improving safety and reducing vehicle emissions, traffic congestion, and crashes.

车辆可在路轨下面自由通行，改善安全状况，减少车辆废气排放，交通拥堵和撞车事故。

youdao

Article 22 Motor vehicle drivers shall abide by road traffic safety laws and regulations, and drive the vehicle safely and courteously according to the operation rules.

第二十二条机动车驾驶人应当遵守道路交通安全法律、法规的规定，按照操作规范安全驾驶、文明驾驶。

youdao

It shows that vehicle traffic deaths plunged from the 1920s until 1970, when the National Highway Traffic Safety Administration was formed, and has improved slowly ever since.

FORBES: Study Pins Higher U.S. Liability Costs On Lawyers, Court System

Finally, we noted how well each vehicle performed in crash tests conducted by the National Highway Traffic Safety Administration and the Insurance Institute for Highway Safety.

FORBES: New Cars To Avoid: Jeep Wrangler, Nissan Xterra And More