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Control
of
a
Vehicle ..
You have three systems that make your vehicle go where
you want it to go. They
are
the brakes, the steering and
the accelerator. All three systems have to do their work
at
the
places where the tires meet the road.
Sometimes, as when you’re driving on snow or ice, it’s
easy to ask more of those control systems than the tires
and road can provide. That means you can lose control
of
your vehicle.
I,
Braking
..
Braking action involves
perception time
and
reaction time.
First, you have to decide to push on the brake pedal.
That’s
perception time.
Then you have to bring up your
foot and do it. That’s
reaction time.
Average
reaction time
is about 3/4 of
a
second. But
that’s only an average. It might be less with one driver
and as long as twomor three seconds or more with
another. Age, physical condition, alertness, coordination
and eyesight all play a part.
So
do alcohol, drugs and
frustration. But even
in
3/4
of
a second, a vehicle
moving at
60
mph
(100
h/h)
travels
66
feet
(20
m).
That could be a lot of distance in an emergency,
so
keeping enough space between your vehicle and others
is important.
And, of course, actual stopping distances
vary
greatly
with the surface of the road (whether it’s pavement or
gravel); the condition of the road (wet, dry, icy); tire
tread; and the condition of your brakes.
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