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Vision and
Visibility
In many cases,
the question of
what could have
been seen by one
of the parties
involved in an
accident is a
critical one.
Vision and
visibility are
affected by a
wide variety of
factors, both
internal and
external to the
individual.
Internal factors
include such
variables as age
and visual
infirmities,
abnormalities,
or corrective
measures.
External factors
include
variables such
as illumination
level, color,
contrast, and
target size.
Often times
these variables
interact with
one another and
an understanding
of the human
visual system
and how its
native
capabilities and
limitations are
affected by both
types of factors
is of critical
importance. A
“one size fits
all” or “cookie
cutter” answer
is rarely either
appropriate or
correct.
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