Table 4.
Mixed Effect Multinomial Logistic Regression of Speed Limit Compliance
| Predictor | Estimate | Est. Error |
95% CI Lower |
95% CI Upper |
Odd Ratio |
|---|---|---|---|---|---|
| Comply to Increase Speed (28.2% of Total Observations) | |||||
| Roadway Changes | Baseline | ||||
| Roadway Same | −3.36 | 1.28 | −6.10 | −1.06 | 0.04 |
| Speed Limit Change = 5 mph | Baseline | ||||
| Speed Limit Change > 5 mph | 1.78 | 0.80 | 0.22 | 3.34 | 5.93 |
| Day | Baseline | ||||
| Night | 3.22 | 1.12 | 1.22 | 5.56 | 25.03 |
| Not Rush Hours | Baseline | ||||
| Rush Hours | 1.54 | 0.65 | 0.29 | 2.86 | 4.66 |
| Comply to Decrease Speed (46.4%) | |||||
| Roadway Changes | Baseline | ||||
| Roadway Same | −2.42 | 0.83 | −4.12 | −0.86 | 0.09 |
| Contrast Sensitivity | −4.41 | 1.98 | −8.82 | −0.82 | 0.01 |