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When you talk about car safety, what immediately comes to your mind is not what you can do to protect yourself, but what the car can do to protect you. Nowadays, there are many features (like airbags and special brakes) provided in standard family saloon cars that provide protection from major accidents, but to a limit…
That is because people today are too lazy to even put some energy in braking, and automobile companies are responding to it. The development of brakes from manual to power brakes, and from two-wheeler to four-wheeler brakes makes that obvious.
The brake system of a standard car consists of disc brakes as well as drum brakes. Disc brakes comprise of a metal disc that rotates with the wheel, and two brake pads gripped in calipers facing the disc. When the break pedal is pressed, hydraulic fluid forces the pads to rub against the disc, thus stopping the disc from rotation. Drum brakes comprise of a metal cylinder that revolves with the wheel, and two brake shoes. The shoes are curved pieces of metal lined with friction material made of asbestos or some other material that can resist the heat generated by the friction. When the break pedal is pressed, the hydraulic fluid forces the shoes on the drum, and the friction helps the wheel to stop. This complex setup of brakes makes it very easy for the driver to stop the car; thus, any error in this system is a major cause of life-taking accidents. (MacVicar; Wyatt, Vol.2, 570-571, 1990)
Another important safety feature in an automobile is airbags. Today, almost every saloon car has at least four airbags provided for the passengers. ...
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