What are frontal supplemental restraint systems (SRS) also known as?

Frontal supplemental restraint systems (SRS) are primarily known as air bags. These systems are designed to deploy in the event of a collision, providing cushioning that helps to protect occupants from injury by reducing the force of impact. Air bags are a key component of vehicle safety systems, serving alongside other restraint mechanisms, but they specifically refer to the inflatable devices that deploy upon impact to aid in preventing head and chest injuries.

In the context of vehicle safety, the other terms listed do not accurately describe frontal supplemental restraint systems. While safety restraints broadly encompass various devices that help to secure occupants in a vehicle (including seat belts), and seat belts are indeed a crucial safety feature, they do not provide the supplementary cushion that air bags do during a collision. Emergency cushions is not a commonly recognized term associated with vehicle safety or restraint systems. Thus, air bags distinctly and accurately define the function and purpose of frontal supplemental restraint systems.