Maintaining safe speeds and being electric, self-driving cars would drastically reduce pollution levels and dependency on non-renewable fuels.

通过保持安全车速行驶和以电为动力，无人驾驶汽车可以大大降低污染程度，并且减少对不可再生能源的依赖。

Using data from past accidents, researchers have worked to identify safe speeds.

研究人员利用过去事故的数据，努力确定安全速度。

(6) if required, reduce down to a safe speed.

(6) 如果需要，降低至安全速度。

(b) Every vessel shall proceed at a safe speed adapted to the prevailing circumstances and conditions of restricted visibility.

(b) 每艘船舶均应以适合当时情况和能见度受限条件的安全速度行驶。

The national nonprofit PeopleForBikes advocates for safer speeds, protected bike lanes, traffic reduction, and more inclusive road planning to make cities more bike-friendly.

国家非营利组织 PeopleForBikes 倡导更安全的速度，保护自行车道，减少交通，以及更具包容性的道路规划，使城市更适合自行车。

For example, when driving around a curve, the navigation system in the vehicle needs to calculate the safe speed based on the map's information.

例如，车辆行驶在一个弯道上时，导航系统需要根据高精地图提供的信息，计算安全车速。

Rule 6 Safe speed Every vessel shall at all times proceed at a safe speed so that she can take proper and effective action to avoid collision and be stopped within a distance appropriate to the prevailing circumstances and conditions.

规则 6 安全速度 每艘船舶应始终以安全速度行驶，以便能够采取适当和有效的行动避免碰撞，并在适合当时情况和条件的距离内停下来。