Research Article
Operational Efficiency Evaluation of Intersections with Dynamic Lane Assignment Using Field Data
Table 3
Statistical description of the headway and nonparametric tests for several independent samples.
| Intersection | Group | Sample size | Minimum (s) | Maximum (s) | Mean (s) | Std. deviation | Kruskal-Wallis test | | Sig. (p) |
| 1 | 1 | 1483 | 1.08 | 7.57 | 2.397 | 1.088 | 115.340 | 0.000 | 2 | 1836 | 1.08 | 5.09 | 2.001 | 0.582 | 3 | 1382 | 1.05 | 5.57 | 2.101 | 0.719 | 4 | 2216 | 1.08 | 5.17 | 1.985 | 0.515 |
| 2 | 1 | 1403 | 1.07 | 8.15 | 2.631 | 1.551 | 145.171 | 0.000 | 2 | 1783 | 1.03 | 5.92 | 2.024 | 0.523 | 3 | 1763 | 1.05 | 6.40 | 2.247 | 0.862 | 4 | 3960 | 1.03 | 5.90 | 1.997 | 0.503 |
| 3 | 1 | 1512 | 1.09 | 8.39 | 2.722 | 1.328 | 449.283 | 0.000 | 2 | 1908 | 1.06 | 6.59 | 2.068 | 0.688 | 3 | 1676 | 1.06 | 5.98 | 2.302 | 0.943 | 4 | 4262 | 1.05 | 5.41 | 2.006 | 0.532 |
| 4 | 1 | 1494 | 1.08 | 9.89 | 2.652 | 1.467 | 163.600 | 0.000 | 2 | 1902 | 1.06 | 5.13 | 2.041 | 0.593 | 3 | 1675 | 1.08 | 7.28 | 2.226 | 1.015 | 4 | 2204 | 1.05 | 4.09 | 2.011 | 0.529 |
| 5 | 1 | 1180 | 1.09 | 8.88 | 2.605 | 1.282 | 256.159 | 0.000 | 2 | 1857 | 1.08 | 6.56 | 2.032 | 0.601 | 3 | 1476 | 1.08 | 7.59 | 2.254 | 0.884 | 4 | 3380 | 1.04 | 5.19 | 2.031 | 0.531 |
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