Research Article
Dynamic Risk Assessment and Control Framework for Work Zone and Its First Implementation under Simulation Environment
Table 8
Poisson regression results.
| | Index | Regression coefficient | | Single vehicle conflict | Two or multi-vehicle conflict |
| | Length of the warning area | — | −0.001 (−4.256) | | Speed limit of the warning area | 0.017 (5.760) | 0.009 (3.632) | | Traffic volume | 0.002 (20.279) | 0.001 (20.184) | | Proportion of large vehicle | 2.995 (8.550) | 3.871 (12.352) | | Constant | −3.157 (−8.483) | −0.832 (−2.469) | | Sample size | 17 | 17 | | Likelihood ratio test | (3) = 658.041, | (4) = 901.705, | | McFadden | 0.652 | 0.789 |
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Dependent variable: UTECN. z statistics in parentheses. |
