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European Transport Research Review

An Open Access Journal

Table 9 Pairwise comparison of the change in assessability of accident types according to data recording techniques, compared to traditional and EDR technologies

From: Expected effects of accident data recording technology evolution on the identification of accident causes and liability

Compared accident type pairs

1. p value

traditional—EDR change

2. p value

traditional—EDR+ change

3. p value

EDR—EDR+ change

Accident type pairs—results

x1–x2

–

0.001834

–

x1 < x2

x1–x5

–

0.002288

0.0003094

x1 < x5

x1–x6

–

0.0006014

–

x1 < x6

x3–x5

–

0.0003691

0.00004055

x3 < x5

x5–x6

–

–

0.002497

x5 > x6

  1. The p values of the Mann–Whitney Test
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