Top human factor incidents - percentage of recorded events
Inattention/Distraction
Inadequate following distance
Inappropriate speed
Inappropriate positioning
Fatigue
30.5%
15.6%
14.8%
10.9%
7.0%
0%
10%
20%
35%
Source: NTARC Major Incident Investigation Report 2025
5%
15%
25%
30%