Buick RIVIERA 1993 Owner's Manual Page 154

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Control
of
a Vehicle
Braking
You have three systems that make your vehicle go where Braking action involves perception time and reaction
you want it to go. They are the brakes, the steering and time.
the accelerator. All three systems have to do their work First,
you
have
to
decide
to
push
on
the brake
pedal,
at the places where the tires meet the road.
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 two or 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
km/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.
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.
~
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.
Most drivers treat their brakes with care. Some,
however, overwork the braking system with poor
driving habits.
Avoid needless heavy braking. Some people drive in
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