**5.2 Evaluation methods**

Evaluation of the restraint effectiveness was performed in two steps: 1) new restraint concept evaluation; 2) integrated restraint system performance evaluation.

#### **Figure 14.**

*The new concepts of restraint devices.*

The 1st step was development of the new restraint concepts one by one, for which a component model was created. Its system performance was then evaluated only at one worst vehicle crash test case. For each protection type, the restraint system integration and performance were optimized. The best performed integrated restraints were then selected for the next step study. **Table 6** shows the new restraint concept evaluation matrix.

The 2nd step was to verify the system performance of the integrated restraints across all the eight crashes in **Table 3**. **Table 7** shows the evaluation matrix for the three integrated restraint systems—the baseline 3 pt. seatbelt from Section 4, a 4 pt. seatbelt and the "optimal" new restraint system from Step 1 of current study.
