WEBVTT
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Language: en

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I am in the National Advanced Driving Simulator
at the University of Iowa.

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It's used to test drivers' reactions
in a controlled, repeatable environment

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and also to test things that would
be unsafe in the real world.

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- Tom's currently in the
simulator, undergoing a study

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to look at driver response
to unintended acceleration.

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The vehicle is going
to accelerate quickly

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without any input from Tom,
as if it were malfunctioning.

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Tom's going to have to identify that this event is going on

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and press the brake very quickly
to bring the car under control.

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GPS: Turn left at the next intersection.

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Whoa...

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Whoa, whoa, whoa, whoa, whoa.

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That was terrifying!

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But there's a question
I want to answer here.

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Recently, I did a video while driving.

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And it was on a dead straight road
with very little traffic,

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and I always felt in control of the vehicle. 
But was I?

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Is it actually dangerous to talk
into a camera while driving?

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So, I'm going to spend 15 minutes
in this simulator, distracted,

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trying to give this monologue
to that camera.

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And I'm also going to spend
15 minutes in here, not distracted

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just driving, and putting my
full attention on the road,

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and the team here
are going to analyse my results

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and tell me how I've done.

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And given I was just doing 35 in a 25,
probably not that great.

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- The National Advanced Driving Simulator
was built to recreate

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the most realistic
driving experience possible anywhere.

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It has a real vehicle cab in it.

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We can swap different
vehicle cabs, in and out.

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The motion base can travel 64 feet
in the X and Y directions

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and these are basically steel
belts that are connected to

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large drives on either end and then,

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the hexapod portion of the
simulator is hydraulic,

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that allows us to experience
roll, pitch and yaw.

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We also have a turntable that can
turn 330 degrees in either direction.

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Overall, it has 13 independent
degrees of freedom.

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We have absolute control
of what time of day it is.

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We have control over
the weather and traffic.

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- And yes, the graphics might not be up to
modern video game standards,

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but after a few minutes in here,
with all the motion,

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your brain just accepts that you're driving.

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- Very broadly, we are
interested in studying the relation

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between the driver and the vehicle
to improve safety,

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so that encompasses things like
driver impairment, driver drowsiness,

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distraction or intoxication.
So we bring drivers in,

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actually give them a
large dose of alcohol,

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get them in the simulator and
we can see how they perform.

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We've also compared that
to things like cannabis,

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so some of the first studies
with cannabis and driving

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have been done in
the simulator here as well.

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As Tom is driving in the simulator,
talking to the video camera,

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I would expect to see him missing
certain information in the driving scene.

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Generally, we find that
interactions that take the

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driver's eyes off the road
tend to be the worst but,

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even in situations where the
driver's looking straight ahead,

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if their attention is pulled to another task,
like talking to a video camera,

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that can also increase distraction and cause
the driver to miss certain things.

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If the driver crashes, they
essentially move through

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the vehicle or the pedestrian
that they collided with,

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so, we don't simulate the
dynamics of the crash,

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but we are recording that they crashed.

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We know the velocity of that crash.

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We know how severe that
crash would have been.

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- So, how did I do?

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- About as well as we would have predicted.

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Let me pull up an example, here.

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A vehicle is going to drive
through an intersection.

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You actually have the red stop sign.

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- Yeah, I didn't see the stop sign, did I?

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- Completely missed it.

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- Whoa, just did not see that.

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The thing is, I'm actually
looking at the road, there.

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I'm actually... but I'm not
thinking about the road,

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because I'm too busy thinking
about what my next line is.

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- Exactly, we would call this
inattentional blindness.

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This is when your
attention is off the road,

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even though your eyes are there.

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You're missing information
that's out in the environment.

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- Wow.

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- So, we saw quite a bit of
swerving at the beginning of your drive,

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you had some trouble
controlling your speed.

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You were going about 35
through a 25 school zone.

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Textbook case of distracted driving.

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- So, I basically, shouldn't
film while driving.

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- Generally speaking, yes.

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- Thank you so much.
- Thank you.

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- Thank you so much to everyone at the

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National Advanced Driving Simulator
at the University of Iowa.

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Pull down the description or click
the link on screen for more about them.

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All the pedestrians here are just suicidal.
All of them.

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This is not a stop sign.
I can just take this.

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Whoa, no I can't.
You're coming in from the right.

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Probably shouldn't check
my phone while I'm driving.