As you can imagine, a lot of car accidents occur while a driver tries to change lanes. But a driver sometimes forgets about blind spots. So, the dilemma has been solved with the help of
radars and
cameras. The radar is installed on the sides of the Audi and Volvo 2007 models. So, nowadays radar technologies help preventing car accidents. The same method is used in other vehicles to detect and prepare for an impact with vehicles and pedestrians. The system is called the 'precollision system' and it senses a collision before it actually occurs. It automatically tries to minimize the effect of an accident. These systems use
radar to detect vehicles in front.