Research Article
Exploring the Impact of Differentiated Per-Lane Speed Limits on Traffic Safety of Freeways with Considering the Compliance Rate
Table 2
ANOVA results of the traffic safety indexes under the full compliance of slow vehicles.
| | Source | Lane changing frequency | Coefficient of variation of speed | Incident rate of DS 1 | Incident rate of DS 2 | | Df | F value | Pr(>F) | Df | F value | Pr(>F) | Df | F value | Pr(>F) | Df | F value | Pr(>F) |
| | Vehicle density | 1 | 2036.099 | < 2e-16 | 1 | 155.552 | <2e-16 | 1 | 6.708 | 0.0164 | 1 | 4.595 | 0.0429 | | DPLSL scenario | 2 | 8.137 | 0.00079 | 2 | 85.882 | <2e-16 | 2 | 0.063 | 0.9394 | 2 | 0.098 | 0.9070 | | Inner/outer lane | NA | NA | NA | 1 | 6.468 | 0.0123 | NA | NA | NA | NA | NA | NA |
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