"Are you lookin' at
me?" Okay, so we've taken some liberty with one of the most
famous lines in moviedom - Robert De Niro's Travis Bickle in Taxi Driver - but
it's a question we need to be asking. Let's look at this in more detail.
Often heard in the motorcycling community is
this; "Car drivers are all out to kill us."
I don't know about
you but of all the car drivers I've come across over the years I have yet to
encounter one who deliberately set out to cause me serious harm. There are plenty of ornery jerks out there, and tens of thousands who are
distracted or not paying attention, but the ones who set out to commit
vehicular homicide appear, thankfully,
to be few and far between.
A common phrase in police accident reports is
this; "The driver looked but didn't see."
We often hear this referred to as a SMIDSY - Sorry
Mate, I Didn't See You. Why didn't that driver see you?
They were looking right at you, right? How could they
look, but not see? It's a rather complicated issue.
Let's start with Global
Precedence. "Global Precedence occurs when an
individual more readily identifies the global feature when presented with a
stimulus containing both global and local features." In other words
the individual sees the big picture but perhaps not all of the smaller features
within it; for example you, the motorcyclist. Prime attention is
directed to larger objects. A truck is bigger than a car which is bigger
and wider than a motorcycle which is bigger than a bicycle, etc.
In the previous newsletter we noted
that Reaction time is Decision-making and Output combined. Both
drivers and riders have similar response times (output) but vary
greatly in the amount of time it takes to make a decision. In demanding
or complex situations key information may be forgotten or discarded before it
can be stored in short-term memory. It's entirely possible that in
developing or busy traffic situations some road users may unconsciously
'choose' not to see you. SMIDSY
What are you wearing? Are you
familiar with camouflage? Are you aware that your bike and
clothing colours may be blending in very nicely with your background. Excellent. Zombie snipers will have a devil of a time picking you out. On the other hand so will other road users.
What else might cause us to go unseen? The
human eye is a true wonder but still short of nature's best, such as found on
eagles and houseflies. Not only do we have a dominant eye - meaning there
is a weaker one - but each eye has its own blind spot. Then there is depth
perception, itself a very complicated processing of sensory information,
binocular and monocular visual cues. If one or more aspects of that
system are not working well then distance perception will be compromised. Only your optometrist knows for sure and I don't know your
optometrist.
Is the person in the car next to you wearing
their prescription eyewear? Or did they leave their glasses/contacts home
because they're unstylish or 'too uncomfortable'? Any person over 40 can
develop cataracts - a clouding of the lens - not ideal for crisp vision and
subsequent decision-making and action. Do they have a form of dyslexia, a
headache, an itch to scratch? What about glare from low sun, dirty
windscreens, kids making a fuss in the back seat, that oh-so-important text
message (What! There are people who text and drive?!), that heavy thought
weighing on their mind, and finally, that new horror, so-called infotainment screens. The list goes on and on. SMIDSY
Mike Moloney ©2015