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Section 4 Your Driving and the Road
Here you’ll find information about driving on different kinds of roads and in v\
arying weather conditions. We’ve also
included many other useful tips on driving.
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Defensive Driving
Drunken Driving
Control
of a Vehicle
Braking
Steering
Off-Road Recovery
Passing
Loss of Control
Driving at Night
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4-32 Driving in Rain and on Wet Roads
City Driving
Freeway Driving Before Leaving on a Long Trip
Highway Hypnosis Hill and Mountain Roads
Winter Driving
Loading Your Vehicle
Towing a Trailer
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I
Defensive Driving
The best advice anyone can give about driving is:
Drive defensively, Please
start with a very important safety device in your
Pontiac: Buckle up. (See “Safety Belts”
in the Index.)
Defensive driving really means “be ready for anything.”
On city streets,
rural roads or freeways, it means
“always expect the unexpected.”
Assume that pedestrians or other drivers are going
to be
careless and make mistakes. Anticipate what they might
do. Be ready for their mistakes.
Rear-end collisions
are about the most preventable of
accidents. Yet they are common.
Allow enough following
distance. It’s the best defensive driving maneuver, in
both
city and rural driving. You never know when the vehicle in
front of you is going to brake or turn suddenly.
Defensive driving requires that a driver concentrate on the
driving
task. Anythmg that distracts from the driving
task -- such as concentrating on a cellular telephone call,
reading, or reaching for something on the floor -- makes
proper defensive
driving more difficult and can even cause
a collision, with resulting injury. Ask a passenger to help
do
things like this, or pull off the road in a safe place to do
them yourself. These simple defensive driving techniques
could save your
life.
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Drunken Driving
Death and injury associated with drinking and driving is a
national tragedy. It’s the number one contributor to the
highway death toll, claiming thousands of victims every year.
Alcohol affects four things that anyone needs to drive
a vehicle:
Judgment
0 Muscular Coordination
0 Vision
Attentiveness.
Police records show that almost half of all motor
vehicle-related deaths involve alcohol.
In most cases,
these deaths are the result of someone who was drinking
and driving. In recent years, over 17,000 annual motor
vehicle-related deaths have
been associated with the use
of alcohol, with more than
300,000 people injured.
Many adults
-- by some estimates, nearly half the
adult population
-- choose never to drink alcohol,
so they never drive after drinking. For persons under
21, it’s against the law in every
U.S. state to drink
alcohol. There are good medical, psychological and
developmental reasons for these laws. The
obvious way to solve this highway safety problem
is for people never to drink alcohol and then drive. But
what if people
do? How much is “too much” if the
driver plans
to drive? It’s a lot less than many might
think. Although it depends on each person and situation,
here is some general information on the problem.
The Blood Alcohol Concentration (BAC)
of someone
who is drinking depends upon four
things:
0 The amount of alcohol consumed
The drinker’s body weight
0 The amount of food that is consumed before and
during drinking
0 The length of time it has taken the drinker to
consume the alcohol.
According to
the American Medical Association, a
180-lb. (82 kg) person who drinks three 12-ounce
(355 ml) bottles of beer in an hour will end up with a
BAC
of about 0.06 percent. The person would reach the
same BAC by drinking
three 4-ounce (120 ml) glasses
of wine or three mixed drinks if each had 1-1/2 ounces
(45 ml) of a liquor like whiskey, gin or vodka.
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It’s the amount of alcohol that counts. For example, if
the same person drank three double martinis
(3 ounces
or
90 ml of liquor each) within an hour, the person’s
BAC would be close to
0.12 percent. A person who
consumes food just before or during drinking will have a
somewhat lower BAC level.
There is a gender difference, too. Women generally have
a lower relative percentage of body water than men.
Since alcohol is carried
in body water, this means that a The
BAC will be over 0.10 percent after three to
six
drinks (in one hour). Of course, as we’ve seen,
it depends on how much alcohol is in the drinks,
and how quickly the person drinks them.
But the ability to drive is affected well below a BAC
of 0.10 percent. Research shows that the driving skills
of many people are impaired at a BAC approaching
0.05 percent, and that the effects are worse at night. All
drivers are impaired at BAC levels above 0.05 percent.
Statistics show that the chance of being in a collision
increases sharply for drivers who have a BAC of
0.05 percent or above. A driver with a BAC level of
0.06 percent has doubled his or her chance of having a
collision. At a BAC level
of 0.10 percent, the chance of
this driver having a collision is 12 times greater; at a
level of
0.15 percent, the chance is 25 times greater!
The body takes about
an hour to rid itself of the alcohol
in one drink. No amount of coffee or number of cold
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showers will speed that up. “I’ll be careful” isn’t \
the
right answer. What
if there’s an emergency, a need to
take sudden action, as when a child darts into the street?
A person with even a moderate BAC might not be able
to react quickly enough to avoid the collision.
There’s something else about drinking and driving that
many people don’t know. Medical research shows that
alcohol in a person’s system can make crash injuries
worse, especially injuries to the brain, spinal cord or heart. This means that when anyone who has been drinking
-- driver or passenger -- is in a crash, that
person’s chance of being killed or permanently disabled
is higher than if the person had not been drinking.
Drinking and then driving is very dangerous. Your
reflexes, perceptions, attentiveness
and judgment
can be affected by even a small amount of alcohol.
You
can have a serious -- or even fatal -- collision
if you drive after drinking. Please don’t drink and
drive or ride with a driver who has been drinking.
Ride home
in a cab; or if you’re with a group,
designate a driver who
will not drink.
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.
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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 314 OS 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;
the condition of your brakes; the weight of the
vehicle and the amount of brake force applied. Avoid
needless heavy braking. Some people drive in
spurts
-- heavy acceleration followed by heavy
braking
-- rather than keeping pace with traffk. This
is a mistake. Your brakes may not have time to cool
between hard stops. Your brakes will wear out much
faster if you do a
lot of heavy braking. If you keep pace
with the traffic and allow realistic following distances,
you
will eliminate a lot of unnecessary braking. That
means better braking and longer brake life.
If
your engine ever stops while you’re driving, brake
normally but don’t pump your brakes.
If you do, the
pedal may get harder to push down. If your engine
stops, you will still have some power brake assist. But
you will use it when you brake. Once the power assist is
used up, it may take longer to
stop and the brake pedal
will be harder to push.
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Anti-Lock Brakes (ABS)
Your vehicle has anti-lock brakes (ABS). ABS is an
advanced electronic braking system that
will help
prevent a braking skid.
When you start your engine, or when you begin to drive
away, your anti-lock brake system will check itself. You
may hear a momentary motor or clicking noise
while
this test is going on, and you may even notice that your
brake pedal moves or pulses a little. This is normal.
ABS
INOP
If there’s a problem with the
anti-lock brake system, this
warning light will stay
on.
See “Anti-Lock Brake
System Warning Light”
in
the Index.
Here’s how anti-lock works. Let’s say the road is wet.
You’re driving safely. Suddenly an animal jumps out in
front of you.
You slam on the brakes. Here’s what happens with ABS.
A computer senses that wheels are slowing down. If one
of the wheels is about to stop rolling, the computer will
separately work the brakes at each
front wheel and at
both rear wheels.
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