What are the safety devices to passenger safety?

I think you mean the GREEN or GROUND wire. On a tool, it is intended to take dangerous electrical currents, and safely carry them to ground (instead of going through you) -It is also known as EARTH...

Safety devices are devices that work to help secure the safety of anyone who is using them. There are different safety devices that can be found in the market today. Some of these are geared for...

1. Seat belt. secures passengers from being thrown about in a collision2. Air Bags. prevents deceleration injury to head and upper torso.3. Headrests. Reduces "whiplash" type injury in rear end...

air bag seat belts

A Safety Sentry Trailer Device is a Safety Device that will prevent Accidental Separation from Towing Vehicle and Towed Trailer.