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Prevent a Crash
Most crashes are caused by motorist error. A motorist can reduce the chanc-
es of a crash by knowing and using the standard crash-prevention formula:
Be alert:
Never think the other motorist will not make a driving mistake.
Be prepared:
Learn what to do in any situation when you have to act fast, and always
expect the unexpected.
Act in time:
Try not to panic. Know what to do if something happens suddenly.
Aggressive Driving/Road Rage
Emotions can greatly affect a motorist’s ability to drive. If a motorist is
angry or excited, he/she should take time to cool off. Aggressive driving is a
progression of unlawful driving actions including, but not limited to, unex-
pectedly altering the speed of a vehicle, making improper or erratic traffic
lane changes, disregarding traffic control devices, failing to yield the right of
way and following another vehicle too closely.
•• Unexpectedly altering the speed of a vehicle is counterproductive to the
goal of safely operating a motor vehicle. The speed limit should always
be obeyed, as failure to do so can result in crashes, injuries, and even
fatalities. Though some people may assume that it is safer to go slower
than the other vehicles, it is actually important to keep up with the flow
of traffic, as doing so helps create a safe environment for all those on the
road.
•• Making improper and/or erratic traffic lane changes can result in
crashes, and so, when attempting to change lanes, it is imperative that
the rear-and side view mirrors are utilized, the turn signals are properly
and responsibly used, and that ample warning time is provided to other
drivers in advance of any lane change. Additionally, the vehicle should
be kept in the center of the lane at all times, as veering to either side can
disrupt the safe flow of traffic, cause drivers to swerve, and ultimately
result in crashes.
•• Disregarding traffic control devices can result in crashes, and therefore,
they should always be obeyed. It is important for a driver to pay attention
to traffic control devices and proceed with proper protocol for a given
circumstance. For example, remember to stop at red lights. A right turn
on red is permissible provided there is no sign stating otherwise, howev-
er, one must first come to a full stop and yield to traffic and pedestrians.
An inadequate stop or failure to yield could result in injury or fatality to
the driver or pedestrians!
•• Failing to yield the right of way is a common, but potentially fatal, mistake.
Drivers should always yield the right of way, including but not limited to,
encountering oncoming traffic. Keep an eye out for yield signs, school
buses flashing red lights, and other situations in which a driver must yield
to promote roadway safety.
•• Following another vehicle too closely increases the chances of a
crash if, for any reason, that vehicle comes to a sudden or otherwise
unanticipated stop, or if driving conditions are less than ideal, be it due
to external factors such as rain, snow or fog, or internal determinants
like inadequate brakes. It is important to keep a safe distance between
vehicles to allow sufficient reaction time and safe stopping distance.
Do not tailgate! It is a good practice to use the “three-second-plus
rule,” (see following pages) to help judge enough following distances.
Be sure to check that the vehicle’s brakes are always in optimal operat-
ing condition.
Aggressive drivers fail to consider how their actions behind the wheel may
affect other motorists on the road. When behind the wheel, a motorist
should always remain calm and follow the rules of the road. Extreme cases
of aggressive driving may lead to road rage.
Road rage occurs when motorists lose their tempers or become frus-
trated because of a traffic disturbance. These aggressive motorists may
run stop signs and red lights, speed, tailgate, weave through traffic, pass
illegally on the right, make improper and unsafe lane changes, make
hand or facial gestures, scream, honk horns or flash high beams. In
extreme cases, aggressive motorists may cause a crash.
New Jersey is waging a campaign against road rage. The state has specifical-
ly trained enforcement patrols to help stop aggressive motorists. To report an
aggressive motorist call (888) SAF-ROAD or, if using a cell phone, call #77.
Note: While there are emergency exceptions to the handheld cell phone
law, it is always safest to pull over to the side of the road before making a
call.
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Distractions
Operating any motor vehicle requires the motorist’s full attention. In many
cases, crashes are caused by a distracted motorist. Inattentive motorists often
tailgate, go too fast or drift out of their lanes. They ignore traffic signs and
signals, road markings, potential traffic hazards, road conditions, and other
vehicles. Some causes of inattentive driving are:
•• Lighting a cigarette.
•• Trying to fasten a safety belt while driving.
•• Reaching across the seat to close a door or look in the glove
compartment.
•• Reaching for coins in pockets while driving up to a toll booth.
•• Trying to adjust a wristwatch.
•• Watching children or pets in the vehicle.
•• Trying to remove a coat.
•• Reading maps and newspapers.
•• Eating while driving.
•• Adjusting a mirror while driving.
•• Using a cell phone or any other electronic device.
•• Adjusting the radio or CD player.
•• Applying makeup.
•• Shaving.
•• Using a laptop computer or fax machine.
A motorist should never do any of these things while driving. His/her full
attention must be on the road at all times.
Tired Driver/Highway Hypnosis
A tired driver is a dangerous driver. A tired driver cannot drive well, and
his/her reaction time is reduced. The motorist may also get upset more
easily or even fall asleep behind the wheel. A tired driver can be as
dangerous as a drunk driver. Maggie’s Law, enacted in June 2003, makes
it illegal to knowingly drive a vehicle while impaired by lack of sleep. This
law establishes driving while fatigued as recklessness under the vehicular
homicide statute. (N.J.S.A. 2C:11-5)
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92 DEFENSIVE DRIVING
When a motorist has been behind the wheel for a long time, he/she may
experience “highway hypnosis.” The trance-like state may be avoided by not
looking at any one thing for more than a few seconds. It is also recommend-
ed that a motorist rest every two hours and/or share the driving with another
licensed motorist.
DROWSY DRIVING – WHO IS MOST AT RISK?
Motorists who are:
•• Sleep-deprived.
•• Driving long distances without rest breaks.
•• Driving through the night or at other times when they are normally
asleep.
•• Taking medicine that increases sleepiness, or drinking alcohol.
•• Driving alone.
•• Driving on long, rural, boring roads.
•• Young people.
•• Shift workers.
•• Commercial drivers.
Communicating and Driving
Communicate with other motorists by all available means and signals. A
motorist should always stay in the lane that shows where he/she intends to
turn. Turn signals (including hand signals, when appropriate) allow a motorist
to tell other motorists what he/she is going to do. Another good method is
catching other motorists’ eyes. It may be necessary to tap the horn to warn
other motorists. At night, a quick flip of the headlights from low to high and
back to low might be helpful.
A motorist should always be patient in town or city traffic and try not to
make quick turns or lane changes. Do not let rush hour traffic become irritat-
ing. Be alert and drive defensively. Always use good judgment in stopping,
starting, and turning. Knowing all traffic rules, signs, and signals is helpful. If
a motorist must pull off the road, he/she should always turn on the vehicle’s
emergency flashers (hazard lights).
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Keep a Safe Distance/Do Not Tailgate
A motorist should always keep a safe distance from other vehicles on the
road so that he/she has plenty of time to react to emergencies. Tailgating
refers to following too closely behind a vehicle directly in front. This is a
common cause of crashes. Tailgating can cause a series of rear-end crashes
when many vehicles are too close together. There should be plenty of space
between a motorist’s vehicle and others on all sides. A motorist should stay
in the middle of the lane and make sure there is enough room ahead to stop
or pass safely.
ONE CAR LENGTH
Although there is no perfect rule for following distance, the rule of thumb
most often used is to keep one car length back (about 20 feet) for each 10
miles per hour of speed. At high speeds or in bad weather, following distanc-
es should be increased.
Keep safe distance
do not tailgate
One car length of distance per 10 MPH,
example above is 50 MPH
Too close
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THREE SECONDS-PLUS RULE
Since many people have trouble judging distances, the three-seconds-plus
rule to determine safe distance may be easier to use. It is useful at any speed.
•• Choose some fixed object ahead of the vehicle in front. The object may
be a sign or a tree. Make sure the object does not distract attention from
driving.
•• As the vehicle in front passes the object, begin counting seconds (one
thousand-one, one thousand-two, one-thousand-three).
•• If it takes at least three seconds before your vehicle passes the
object, a motorist should have enough distance for a sudden stop.
•• Practicing safe space management/following distance increases the
ability to stop a vehicle safely and smoothly in the event the vehicle in
front stops.
•• Stopping distance = Perception Distance + Reaction Distance + Braking
Distance.
•• By keeping a foot near the brake, a motorist can reduce reaction distance.
•• Time and distance relationships are designed for the best driving
conditions.
•• It should be noted that heavier vehicles may take longer to stop.
Try the three seconds-plus rule while driving. It can help a motorist develop
good judgment for proper following distances. During bad weather, the
time interval should be increased to four or more seconds.
Following Distances
While keeping the proper following distance in traffic, a motorist should
always know the condition of his/her vehicle’s brakes. Test them often.
Make sure of the distance it may take to stop. This is very important on
wet roads and where there is snow and ice. A motorist should always
increase following distance when road conditions are poor.
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MINIMUM SAFE FOLLOWING DISTANCE (IN CAR
LENGTHS)
Road Condition 20 mph 30 mph 40 mph 50 mph
Ideal 2 car lengths 3 4 5
Wet pavement 4 car lengths 6 8 10
Gravel 4 car lengths 6 8 10
Packed snow 6 car lengths 9 12
Ice 12 car lengths 18
Changing Lanes and Passing
Using the proper lane is an important part of defensive driving. Do not strad-
dle a lane. Be alert to traffic behind. When a lane change must be made, look
in the rearview mirror. Glance behind to check blind spots. Always signal lane
changes.
Before passing a vehicle or changing lanes, keep the following points in
mind:
•• Only pass or change lanes when necessary.
•• Only pass or change lanes if the change can be completed without
speeding.
•• Keep a safe following distance; do not tailgate.
•• Check traffic ahead and behind.
•• Only pass when signs and pavement markings permit.
•• Signal every lane change.
•• Signal your return to the right lane.
•• Return to the right lane when well ahead of the vehicle that was passed.
(A good indication that it is safe to return to the right lane is when the
vehicle that was passed is visible in the rearview mirror.)
•• Cancel the turn signal.
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Passed by Another Vehicle
When a motorist is passed by another vehicle, he/she must be careful. Stay
in the proper lane and slow down to make the pass easier for the other
motorist. Return to normal speed after the passing vehicle is well ahead.
(N.J.S.A. 39:4-87)
Road Conditions
WET ROADS
Drive more slowly on wet roads. Stopping and turning should be completed
with great care. The three-seconds-plus rule should be increased to four or
more seconds. Quick turns or changes in speed may cause a vehicle to skid.
HYDROPLANING
Wet road surfaces can cause tires to hydroplane, or ride up on a film of water,
starting at about 35 mph, which could cause a motorist to lose control of
his/her vehicle. Chances of hydroplaning increase as speeds increase. After
55 mph, tires may totally leave the road surface. If tires totally leave the road
surface, braking is virtually impossible, and turning is not possible. A gust
of wind, a change in road level or a slight turn can create a skid if a vehicle
is hydroplaning. To avoid hydroplaning, do not drive on bald or badly worn
tires, and slow down when heavy rain, standing water, or slush is present. In
a heavy rainstorm, try to drive on the highest point of the road. For example,
use the center lane on a multiple lane highway, when available.
35 MPH
or less
35 MPH
or more
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SNOW AND ICE
Winter driving has special dangers, including longer hours of darkness, fog,
rain, snow, sleet and ice. Each of these increases the possibility of a crash. A
safe motorist is prepared for these types of situations.
Before driving in cold weather, start the engine and let it warm up according
to manufacturer directions. All snow and ice must be removed from the
entire vehicle. New Jersey law states that a motorist is responsible for any ice
that flies from his/her vehicle and causes death, injury, or property damage.
(N.J.S.A. 39:4-77.1) Always make sure the vehicle has the proper type of
windshield washing fluid.
In snow and ice conditions, motorists should take precautions and get a
feel for the road. Gently applying the brakes while driving slowly will allow a
motorist to find out how slippery the road is. This will also allow the motorist
to judge how fast the vehicle can go and still stop safely.
A vehicle will skid if a motorist:
•• Accelerates too quickly.
•• Turns too fast.
•• Brakes improperly.
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Motorists who have vehicles with anti-lock brakes (ABS) should keep a foot
on the brake pedal and not pump the brakes. Conventional disc and drum
brakes require firm, steady pressure on the brake pedal. Hitting the brakes
too hard may cause the wheels to lock. If the brakes do lock, release the
brake pedal, and immediately reapply with slightly less pressure. This
process should be repeated with less and less pressure on the brake pedal
until the vehicle is under control. Snow tires help driving during the winter
months by providing better traction for more controlled starting, steering,
and stopping. Snow tires do not provide good traction on ice. Tire chains
are the best traction on ice and in hard-packed or deep snow. In New
Jersey, motorists may use studded snow tires between November 15 and
April 1.
To start on snow and ice, keep the engine speed low. If the wheels spin, a
lower gear should be used. When stuck, rock the vehicle back and forth by
shifting between forward and reverse to escape.
Motorists are prohibited from allowing their motor vehicle to idle for more
than three consecutive minutes. Among the exceptions for this prohibition
include motor vehicles stopped in traffic, motor vehicles being repaired,
motor vehicles waiting to be inspected, emergency vehicles in emergency
situations, and buses while discharging or picking up passengers. (N.J.A.C.
7:27-15.8, 7:27-14.3)
Reduced Visibility
Poor roadway or weather conditions require motorists to increase following
distance because rough, wet, or snow-covered roads may require more
response time. A good rule on snow-covered roads is to maintain a follow-
ing distance of six seconds or more.
Frost or ice: Always scrape and wipe a vehicle’s windows before starting.
Turn on the defroster. If the defroster does not work while driving in freezing
rain or snow, safely stop the vehicle. Close the windows and let the heater
warm up the windows.
Fog: Always slow down when driving in fog. Headlights should be kept
on low beam and fog lights should be turned on if the vehicle has them.
Pavement markings and other vehicle lights can serve as a motorist’s guide.
Sun glare: Sun visors should always be adjusted to shield a motorist’s eyes
without cutting off his/her view of the road. Hold the steering wheel firmly
and slow down. Watch for lane markings.
In all cases, if visibility is greatly reduced, a motorist should stop alongside
the road or on the shoulder, out of the way of traffic, and turn on emergency
flashers.
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