| Parameter | Injury Levels | Ratio |
| Shoulder Width | Incapacitating Injury | 1.307 |
| Fatal Injury | 1.230 | |
| Incapacitating Injury | 1.026 | |
| Fatal Injury | 1.090 | |
| AADT | Possible Injury | 1.002 |
| Fatal Injury | 1.002 | |
| Fatal Injury | 1.020 | |
| Non Incapacitating Injury | 1.013 | |
| Incapacitating Injury | 1.029 | |
| Fatal Injury | 1.032 | |
| Alcohol Drug | Possible Injury | 0.845 |
| Non Incapacitating Injury | 1.113 | |
| Incapacitating Injury | 1.114 | |
| Fatal Injury | 3.770 | |
| Incapacitating Injury | 0.864 | |
| Fatal Injury | 0.676 | |
| Non Incapacitating Injury | 0.753 | |
| Incapacitating Injury | 0.823 | |
| Road Wet | Possible Injury | 1.099 |
| Incapacitating Injury | 0.832 | |
| Divided | Possible Injury | 1.088 |
| Non Incapacitating Injury | 1.117 | |
| Fatal Injury | 2.281 | |
| Vision Block | Possible Injury | 0.885 |
| Non Incapacitating Injury | 0.804 | |
| Single Vehicle | Possible Injury | 1.489 |
| Non Incapacitating Injury | 1.839 | |
| Incapacitating Injury | 1.821 | |
| Fatal Injury | 1.441 | |
| Rear end | Possible Injury | 1.931 |
| Non Incapacitating Injury | 1.277 | |
| Head On | Possible Injury | 2.048 |
| Non Incapacitating Injury | 2.156 | |
| Incapacitating Injury | 2.595 | |
| Fatal Injury | 3.227 | |
| Angle | Possible Injury | 1.661 |
| Non Incapacitating Injury | 1.878 | |
| Incapacitating Injury | 1.770 |