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

Manual for SafetyNet accident causation system (SNACS) - Appendices
GENERAL Genotypes
Faulty diagnosis (C1)
Inadequate plan (D1)
Distraction (E3)
Fatigue (E4)
Inattention (E6)
Under the influence of
substances (E7)
Functional impairment (F1)
Temporary sight obstruction
(G3)
Permanent sight obstruction
(H5)
Equipment failure (I1)
Inadequate road design (N1)
Permanent obstruction to view
(N2)
Temporary obstruction to view
(N4)
Wrong reasoning (C2)
Distraction (E3)
Fatigue (E4)
Inattention (E6)
Under the influence of
substances (E7)
Physiological stress (E8)
Psychological stress (E9)
Functional impairment (F1)
OBSERVATION (B)
ANTECEDENTS (REASONS/CAUSES)
SPECIFIC Genotypes (with
definitions)
Glare (B1.1)
Being faced with bright lights
which make it difficult to see.
Noise (B1.2)
Being surrounded by loud noise
which prevents perception of
other acoustic signals
Tunnel vision (B1.3)
Being limited in the peripheral
vision.
Other (B1.4)
Examples for SPECIFIC
Genotypes
Low sun shining right at the
vehicle/person.
High volume on the stereo
keeps one from hearing other
road users honk the horn.
When experiencing fear or high
speed, the peripheral vision
diminishes from 180 degrees to
as much as 20-30 degrees.
Other (B2.1) A car which is standing still or
moving very slowly is mistakenly
observed as a (faster) moving
car.
CONSEQUENTS
(RESULTS/EFFECTS)
GENERAL Genotypes (with
definitions)
Observation missed (B1)
A signal or an event that should
have been the start of an action
(sequence) is missed, i. e., not
seen, not heard, not felt etc..
False observation (B2)
An event or some information is
incorrectly recognised or
mistaken for something else.
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