A Quick Overview of Physical Vehicle Safety Devices
Last reviewed: 2026 · Driviology Road Safety Education Team
Quick Answer
The main physical vehicle safety devices are seatbelts, airbags, and child restraint seats, each protecting occupants in a different way during a collision.
Several distinct physical devices work together to protect vehicle occupants, each covered in more depth in its own dedicated guide.
Seatbelts as the Foundation
Seatbelts remain the single most effective device, keeping occupants positioned correctly so other safety systems can work as intended.
Airbags as a Supplement
Airbags are designed to work together with a properly worn seatbelt, not as a replacement for one.
Child Restraint Seats
Child restraint seats address a need standard seatbelts alone cannot meet for younger passengers.