Service manual
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.
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
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.
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 spurts
--
heavy
acceleration followed by heavy braking
--
rather than keeping pace
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