Seat belts became available in new cars during the
early 1970's. Shoulder belts followed shortly thereafter. Beginning in
1985 car manufacturers offered airbags as part of a 'supplemental
restraint' system SRS in automobiles. Today most top of the line
car-makers provide air bags as a SRS with primary being the seat belt.
The fact is - airbags combined with seat belts (lap and shoulder belt)
do save lives and help prevent more serious injury.
Results from an eight-year study conducted by the
University of Pittsburgh Medical Center was presented at an annual
meeting of the American Academy of Orthopaedic Surgeons. Researchers
found airbags combined with seat belts effectively reduced spinal
injuries from automobile accidents.
Airbags were never designed to replace seat belts.
That is why an airbag is called a 'supplemental restraint'. When the
airbag deploys the seat belt helps protect the occupant by providing
body support and preventing occupant ejection. The airbag creates a
cushion between the occupant and the steering wheel, dashboard,
windshield or other surfaces. Airbags are designed to protect the head,
neck and chest.
The drivers must put 10 inches between their
breastbone and the steering wheel to prevent injury
from airbag deployment. The risk zone for drivers
occurs during the first two to three inches of airbag inflation. Ten
inches is a good safety margin.
Children age 12 and under should ride in the back
seat properly restrained. If a child must ride in the passenger's front
seat, it is suggested that the seat be moved as far back from the airbag
as possible. The seat and shoulder belts should be secure about the
child. If necessary, provide a booster seat. Never allow children to
ride in the laps of other passengers!
Although many motor vehicle accidents cannot be
prevented, drivers and passengers can do something to reduce the risk
for spinal injury. Combining airbags with properly adjusted seat and
shoulder belts is a good start.
Air bags are only useful in frontal crashes, so it is
not a good idea to skip your seat belt because you have an air bag. Air
bags provide very effective protection in frontal crashes, inflating
instantly to protect the driver or passenger that has an air bag. They
spread the impact of the crash over the individual's head and chest and
protect fragile body parts from the car's hard surfaces. Many basic
improvements have been introduced into cars in recent years. These
include anti-burst door latches, safety glass, energy-absorbing steering
wheels and columns, head restraints and various seat belt systems. The
benefits of the three-point seat belts have been firmly established:
Studies have proven that the risk of serious or fatal injury to front
seat passengers is reduced by 45-55% through the use of seatbelts. They
work by limiting movement of the body, when your vehicle has a sudden
change of speed or direction and keep you positioned in your seat, so
you don't bounce around or get thrown from your vehicle. This
positioning is also what is used to increase the effectiveness of the
Airbag.
There is some misconception that airbags alone will
protect you, however, airbags were designed to work in conjunction with
seatbelts. Airbags are Supplemental Restraint Systems, thus the SRS on
the cover. They are not meant to function alone as they are a passive
safety device that supplements seat belts. Modern seat belts have the
shoulder belt attached to the end of the buckle which runs up the side
of the vehicle to an anchor point behind the front seat and contain a
pretensioner.
When you buckle up you pull the belt across your body
and insert the belt into the receiver in the middle of the car. Wearing
your Seat belts keeps you in the best position to benefit from the
Airbag when a collision occurs. To add to that, airbags are not intended
to be activated in every accident. It is only when the vehicle is
involved in a frontal collision somewhere in the vicinity of at least
15-20 mph, a number of things happen very quickly. The sudden
deceleration of your vehicle causes 2 sensors to send an electrical
signal to the diagnostic module.
The diagnostic module self tests to confirm that a
crash event is taking place, and then it allows the signal to trigger
the airbag deployment. It is important to note that airbags are not
designed to inflate if the car is subjected to a side or rear impact or
if it rolls over, because forward deceleration is absent in such
situations. Hence to summarize, airbags deploy only when you really need
them.
At this point it is important to highlight the
significance of seat belts and proper seat position. Various studies and
statistics have clearly shown that seat belts are the most effective way
of saving lives and preventing serious injury in case of collisions. SRS
Airbags only supplement seatbelts, as the name implies. An occupant in
the front seat who is sitting too close to the deploying airbag may risk
being bruised or thrown backward by an inflating airbag. That is why it
is of utmost importance to make sure that one is wearing a seat belt and
sitting upright, well back in the seat, in full contact with the
seatback.
Extra care is required when children are riding in
cars equipped with SRS Airbags, as it is dangerous to put a child in the
front seat either in a child seat or otherwise. An unrestrained child or
a rear facing baby seat in the front may result in a possibly fatal
outcome, incase of a collision whereby the airbag is deployed, as the
baby will be forcefully thrown backward. The safest way for an infant or
small child to ride in a car is in a baby seat that is properly strapped
to the rear seat.