Glossary of Data Variables for Fatal and accident causation ... - ERSO

Manual for SafetyNet accident causation system (SNACS) - Appendices
Overload / Too
high demands
(M2)
Management
failure (M3)
could be part of the
whole driving task but
competing with the task
concerned.
Other (E3.4)
Circadian rhythm
(E4.1)
Driving at a time which
is normally not within
the "waking hours" and
that results in reduced
output capacity.
Extensive driving
spell (E4.2)
Not taking breaks or
pausing when driving
long distances, and
that leads to diminished
driving ability.
Other (E4.3)
Illness (E5.1)
The individual is struck
with a condition of
illness which affects the
ability to drive in a
negative way.
Insufficient skills
(L1)
Insufficient
knowledge (L2)
Overload / Too
high demands
(M2) Other (E5.2)
Cognitive bias
(F2)
Temporary inability
(E6.1)
The individual cannot,
at that moment, handle
something which
normally is not a
problem.
Driving at night to avoid
heavy traffic.
Truck drivers changing
trucks with each other
and driving more than
the allowed period of
time during 24 h.
Have a heart attack,
suffer from dizziness,
feeling nauseous, etc
The driver of a car
starts coughing very
much and is not able to
pay attention to the
driving.
Fatigue (E4)
Being mentally or physically tired/exhausted.
Performance variability (E5)
Reduced or increased precision of actions.
Inattention (E6)
Low vigilance due to loss of focus.
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