The Car Insurance accident study looks at the measures taken to ensure that proper design elements are incorporated into automobiles for optimal safety. Crash test dummies are used, as they are the closest thing to a real human that is ideal for testing.
The chart explains each component of the dummies body and how it functions. What is interesting to note is that before the dummies are put into a vehicle for testing they are painted, and once impact is made the paint splashes, which helps researches determine ways to prevent injuries.
Another enlightening tidbit to mention is that before the high-tech methods that are used today, testers used human cadavers, sandbags and even human volunteers.