What is the purpose of the crashworthiness doctrine?

What will be an ideal response?

Sometimes, when an automobile is involved in an accident, the driver or passengers are not injured by the blow itself. Instead, they are injured when their bodies strike something inside their own automobile (e.g., the dashboard, the steering wheel). This is commonly referred to as the "second collision." The courts have held that automobile manufacturers are under a duty to design automobiles to take into account the possibility of this second collision. This is called the crashworthiness doctrine.