Research Article
Impact of Road Environment on Drivers’ Preference to Merging Location Selection in Freeway Work Zone Merging Areas
Table 4
Logistic regression model estimation results for Location Ι.
| | Merging area: Location I | B | S.E. | Wald | DF | Sig. | Exp (B) | 95% confidence interval | | Lower bound | Upper bound |
| | Intercept | −2.915 | 2.123 | 1.885 | 1 | 0.170 | — | — | — |
| | Road conditions | Road alignment | −4.222 | 1.676 | 6.342 | 1 | 0.118 | 0.015 | 0.001 | 0.392 | | Number of closed lanes | 4.393 | 1.969 | 4.978 | 1 | 0.026 | 1.012 | 0.000 | 0.586 | | Length of closed lanes | 0 | — | — | 0 | — | — | — | — |
| | Road alignment conditions | Straight line segment | −1.024 | 1.887 | 0.295 | 1 | 0.587 | 0.359 | 0.009 | 14.497 | | Horizontal curve segment | −0.841 | 1.794 | 0.220 | 1 | 0.639 | 0.431 | 0.013 | 14.494 | | Longitudinal slope segment | −0.487 | 2.612 | 0.035 | 1 | 0.852 | 0.614 | 0.004 | 102.816 | | Curve slope combination segment | 0 | — | — | 0 | — | — | — | — |
| | Traffic environment conditions | Traffic volume and composition | 3.297 | 1.742 | 3.583 | 1 | 0.058 | 27.033 | 0.890 | 821.442 | | Work space location | 3.155 | 1.916 | 2.710 | 1 | 0.100 | 23.450 | 0.548 | 1003.347 | | Work zone layout | 3.845 | 2.510 | 2.345 | 1 | 0.126 | 46.741 | 0.341 | 6405.209 | | Traffic organization and control measures | 0 | — | — | 0 | — | — | — | — |
| | Traffic control signs | Work zone warning sign | −24.87 | 0.000 | — | 1 | — | 0.000 | 0.000 | 0.000 | | Speed limit sign | −0.289 | 1.257 | 0.053 | 1 | 0.818 | 0.749 | 0.064 | 8.794 | | Merging guide sign | 0 | — | — | 0 | — | — | — | — |
| | Speed conditions | Speed difference with front vehicle | 1.858 | 2.175 | 0.730 | 1 | 0.393 | 6.413 | 0.090 | 455.081 | | Speed difference with front side vehicle | 0.452 | 1.729 | 0.068 | 1 | 0.794 | 1.572 | 0.053 | 46.578 | | Speed difference with rear vehicle | 1.543 | 2.465 | 0.392 | 1 | 0.531 | 4.681 | 0.037 | 587.031 | | Speed difference with rear side vehicle | 0 | — | — | 0 | — | — | — | — |
| | Speed limit strategy | Single-speed limit | 3.695 | 1.384 | 7.127 | 1 | 0.008 | 40.238 | 2.670 | 606.354 | | Repeated speed limit | −0.226 | 1.352 | 0.028 | 1 | 0.867 | 0.798 | 0.056 | 11.290 | | Hierarchical speed limit | 0 | — | — | 0 | — | — | — | — |
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