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Safety features of a car

IntroductionIntroduction Cars today are much safer to travel in Cars today are much safer to travel in

than cars ten or twenty years ago. than cars ten or twenty years ago.

As a result of crash tests, designs have As a result of crash tests, designs have changed and are still changing.changed and are still changing.

Crumple ZonesCrumple Zones Crumple zones were first Crumple zones were first

introduced in 1959. introduced in 1959.

Crumple Zones, indicated Crumple Zones, indicated here in red, were designed here in red, were designed to absorb the energy of a to absorb the energy of a collision by bending and collision by bending and breaking in a predictable breaking in a predictable manner. In doing so, the manner. In doing so, the force of the collision would force of the collision would be diverted away from the be diverted away from the passenger's compartment, passenger's compartment, thereby keeping him or her thereby keeping him or her from serious injury. from serious injury.

Seat beltsSeat belts The seat belt was The seat belt was

introduced by Nash introduced by Nash Motors in 1949.Motors in 1949.

Seat belts work in the Seat belts work in the same principle as same principle as crumple zones. crumple zones.

They make the change in They make the change in momentum take longer – momentum take longer – so that the force is less.so that the force is less.

AirbagsAirbags Airbags help cushion Airbags help cushion

the impact, reducing the impact, reducing your momentum more your momentum more slowly so that the slowly so that the force is less.force is less.

Airbags are intended Airbags are intended to be used as a to be used as a supplementary device supplementary device to the seatbelt.to the seatbelt.

Traction ControlTraction Control Traction control systems

improve vehicle stability by controlling the amount the drive wheels can slip when you apply excess power. The system automatically adjusts the engine power output and, in some systems, applies braking force to selected wheels during acceleration.

Head Injury ProtectionHead Injury Protection Head injury protection

consists of foam or other energy absorbing material under the trim of the vehicle interior and is likely to be invisible to vehicle occupants. Some vehicles have head air bags.

All-Wheel DriveAll-Wheel Drive

All-wheel drive distributes power to both front and rear wheels to maximize traction. Unless combined with traction control, all-wheel drive systems do not prevent the drive wheels from slipping when you apply excess power during acceleration.