Table 2.
Mean and standard deviation for each PI, where the selected window size is chosen based on the minimum p-value from a t-test between the groups distracted and attentive. The results were obtained from the baseline dataset.
| PI | Win size (s) | Mean attentive | Mean distracted | p-value |
|---|---|---|---|---|
| SD Speed (km/h) | 6 | 1.2±1.1 | 1.6±12.0 | <0.001 |
| SD Steering Wheel Angle (deg) | 18 | 6.1±6.0 | 4.3±4.3 | <0.001 |
| SWRR (rev/min) | 25 | 0.4±0.1 | 0.4±0.1 | <0.001 |
| Max Reversal (deg) | 18 | 18.5±20.6 | 12.7±15.3 | <0.001 |
| High Frequency Steering (deg2) | 3 | 9.7±18.6 | 8.6±30.1 | 0.03 |
| Steering Entropy (bits) | 10 | 1.37±0.12 | 1.38±0.13 | 0.04 |
| Throttle Hold Rate (%) | 32 | 0.82±0.08 | 0.81±0.08 | 0.01 |