’
C-ontrol
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 &ccelerator.
All
three systems have‘to
do
their ‘work
s
at the places where the
tires
meet the road.
.
,.
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
€oot and do it.
Thah
reaction time.
Average
reacbioPz time
is-about
3/4
of
a second. But
th&s
only
an
average.
It
might be less. with :one ‘driver
-and
as long as
two
or
three
seconds
or
more
wid
mother.
Age, physical
condition,
,alertness, coordination
.
I
is i-mportant.
“I
.
And,
of
course, actual stopping distances vary greatly
I
’
with
the
surface
of
the
road (whether
it’s’
pavement or
gravel); the condition
of
the road.(wet,
dry,
icy); tire.
tread;
and
the bondition
of
your brakes.
!
I
1
,.
~
Sometimes, as when you’re driving
on
snow or ice, it’s
.
easy to ask more
of
those controi systems than
the
tires
.~
.
1
,.
’
.
--:
and
road
can
provide. That means
you
can lose control
.~
I
.*,
>.L
...
.,
of
your vehicle.
L-
._8
8-
r-
’
i
I
,
-.
L.
.
<
I
-
:’
7
_.
4-5
-,
:i
.
.,
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