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Table 7 Pairwise comparison of the assessability of accident types for various data recording technologies—the p values of the Mann–Whitney Test
Accident type pairs | 1. p-value traditional data | 2. p-value EDR data | 3. p-value EDR + data | 4. Relation between accident type pairs |
|---|---|---|---|---|
x1–x2 | – | – | 0.003029 | x1 < x2 |
x1–x3 | – | – | 0.001556 | x1 < x3 |
x1–x5 | – | – | 0.002424 | x1 < x5 |
x1–x6 | – | – | 0.001248 | x1 < x6 |
x3–x5 | 0.0005099 | 0.00001499 | – | x3 > x5 |
x3–x7 | 0.002868 | 0.0001956 | – | x3 > x7 |
x5–x6 | – | 0.002497 | – | x5 < x6 |
x6–x7 | – | 0.002959 | – | x6 > x7 |