Sunday, December 8, 2013
DEFENSIVE DRIVING & OTHER PRECAUTIONS
“Defensive Driving” means being constantly aware
of the driving conditions, planning ahead, anticipating
dangers and taking the right action so as not to come in
contact with any obstacle or other vehicle.
Courtesy and consideration toward others are the
most important driving attitudes you can develop.
They are the key to safe driving.
As a driver you will be constantly making decisions
every mile you drive. There is a right way to make these
decisions. It is known as defensive driving.
Tennessee Driver Handbook 90 Defensive Driving & Other Precautions
1. SPACE AHEAD: Rear-end crashes are very common.
Rear-end crashes are caused by drivers following too closely
(tailgating) to be able to stop before hitting your vehicle ahead
when it suddenly slows or stops. The best way to maintain
this safety cushion is to follow the basic 2-Second Rule. Also
leave extra space when approaching railroad crossings or
when stopped behind another vehicle on a hill or competition.
2. SPACE BEHIND: It is not invariably easy to manage the
space behind your truck. However, you can help keep a
driver behind you at a safe distance by keeping a reliable speed
and using turn signals in advance when you have to slow
down or turn. Every now and then you may find yourself
being followed too closely or being “tailgated” by another
driver. If there is a right lane, move over to the right. If there
is no right lane, wait before the road ahead is clear and passing
is legal, then slowly get rid of your speed. This will encourage
the tailgater to drive around you. Never slow down quickly
to discourage a tailgater. All that does is increase your risk of
being hit from behind.dot compliance help
3. SPACE TO BOTH SIDES: You need space on both sides
of your vehicle to have room to turn or change lanes. Avoid
driving in oblivious spots of other vehicles. When meeting
oncoming vehicles on a two-lane road stay slightly to the right
of your lane so as not to “crowd” the centerline. Be well-mannered
and move to the left lane on multi-lane roads when other
vehicles making the effort to merge into traffic. Keep extra space
between your vehicle and parked cars, pedestrians and
bicyclists (especially children) on the roadside. Two key rules
about space to the side includes:
• “Split the difference” - between two hazards. For
example, steer a middle course between oncoming traffic
and parked vehicles. However, if one is more dangerous
than the other, leave a little more space on the most
dangerous side. If the oncoming vehicle is a semi-truck,
leave a more room on the side that the truck will pass on
instead of the medial side with the parked cars.
• “Take potential hazards one-by-one. ” For example, if
you are overtaking a bicyclist and an oncoming vehicle is
approaching, slow down, let the vehicle pass first so that
you can then safely move to the left to give room to the
bicycle.dot compliance workshop
MERGING DEFENSIVELY: A minimum four-second gap
is needed whenever you change lanes, enter a roadway or
when your lane merges with another traffic side of the road. If you need
to cross several lanes, take them one-by-one. NEVER cut
across multiple lanes, it can tie up traffic and even cause you
to have a collision or create a crash between other vehicles
trying to avoid your sudden and unsafe maneuver.
HANDLING INTERSECTIONS DEFENSIVELY: When
you cross traffic, you need a large enough gap to get all the
way across the road. DO NOT BLOCK INTERSECTIONS
or get caught with a portion of your truck left in a traffic
lane with approaching vehicles. Make sure you can safely
complete the cross or entering maneuver before you begin.
PASSING DEFENSIVELY: Whenever signs or road
markings permit you to pass, you will have to judge whether
you have enough room to safely pass. Do not count on
having some time to pass several vehicles at once. Be safe.
As a general rule pass only one vehicle at a time. Remember
passing does not entitle you to exceed the speed limit. At 52
M. P. H. you will need about ten (10) seconds to complete the
pass of a single vehicle. That means you require a ten-second
gap in oncoming traffic and sight distance to pass. You must
judge whether you will have enough space to safely pass.
• Safely Finishing the Pass: Do NOT pass until you
have enough space to go back to the driving lane. Do NOT
count on other drivers to make room for you. You will
need enough room between your vehicle and the other
vehicle (“space behind”) to safely revisit the driving
side of the road. It’s safest not to return to the driving lane and soon you
can see both headlights of the vehicle you just passed in
the rearview mirror.
ALLOW SPACE FOR DANGEROUS SITUATIONS OR
PROBLEM DRIVERS YOU MAY ENCOUNTER
• People who cannot see you: Anyone who cannot see you
may enter your way without knowing you are there. Such as:
º Drivers at intersections or driveways where their view
is blocked by buildings, trees or other vehicles.
º Pedestrians with umbrellas in front of their faces or
with their hats pulled down
º Oblivious pedestrians with white cane or guide dogs.
• People who may be distracted: Even when others can see
you, allow extra room if you think they may be distracted
such as:
º Delivery persons
º Drivers who are not paying attention to their driving
(talking on cell phones, looking at maps, arguing with
passengers or trying to take care of children in the car).
• People who may be confused: People who are confused
may cause an unsafe situation such as:
º Tourists or persons driving cars with out-of-state
driver's license plates (especially at complicated intersections).
º Drivers looking for street signs or house numbers..
• Drivers in trouble: If another driver makes a blunder (a
driver who passes you when they just don't have enough room,
for example), do not make it worse. Slow down and let
them safely revisit the driving side of the road. Other situations
include:
º If another driver needs to suddenly change lanes, slow
down and let them merge.
º A driver who is about to be forced into your side of the road by
another blending vehicle, lane closed due to
construction, bicyclists, pedestrians or children on the
roadside, etc.dot compliance help
These gestures will keep traffic moving effortlessly and safely.
Scanning the road and Traffic for Defensive Reactions
Most of what you do as a defensive driver is in response
to what you SEE while driving. When driving, we gather
90% of the information about the road and our surroundings
Tennessee Driver Handbook 87 Defensive Driving & Other Precautions
through our eyes. Scanning means looking at the entire scene
for anything that might come into your way. As you scan the
road, avoid a fixed stare. Keep your eyes moving and learn to
read the road. Look ahead, to the sides and behind you.
Scan Ahead - looking ahead will help you see things
early and will allow you more time to react. Defensive
drivers try to focus their eyes 10 to 15 seconds (about the
distance of 1 city block) ahead.
Scan to the Sides - Scan from side to side, checking for
directional signs, cars or people that might be in the road by
the time you reach them.
Watch for Clues - Look for exhaust smoke, brake or
back-up lights and turned wheels on vehicles. Clues like
these indicate that the vehicles may pull into your way.
Be Careful in Rural Areas - Watch for hidden
intersections and driveways, curves, hills and different road
conditions (pavement changing to gravel or dirt road,
narrowing road, etc. ).
Check Left to Right before Entering an Intersection -
At any intersection, look to the left first, since cars coming
from the left will be closer to you. Then look to the right and
take one more quick look to the left before you drive through.
Look Behind - Use your rearview mirror to check the
traffic behind you frequently, about every 10 seconds. This
will alert you if someone is moving up too quickly or
tailgating you. Be sure to check the traffic behind you when
changing lanes, backing up, slowing down quickly or driving
down a long steep hill. But don’t keep you eyes off the road
ahead for more than a brief look behind.
Communicating with other Drivers
Communicating means clearly showing other drivers and
pedestrians what you plan to do early enough to avoid a
collision. Whenever you plan to change directions, use your
turn signals - whether you are changing lanes, turning at an
intersection, entering an interstate, pulling away from a curb
or pulling off to the side of the road. Develop the habit of
using your turn signals even when you do not see other
vehicles on the road.dot compliance help
Adjusting Speed to Conditions
Slow Speed / Impeding the Traffic Flow - No driver should certainly
drive at such a slow speed as to hold back or block the normal
and reasonable flow of traffic.
Speed Control Benefits Everyone - As your speed
increases, so does your car’s wind resistance, a big think about
gasoline mileage. Most automobiles get about 28% more
miles per gallon on the highway at 50 Mirielle. P. H. than at 70 and
about 21% more at 55 Mirielle. P. H. than at 70.
Driving at moderate data transfer rates also:
• Provides you with better stopping and evasive control in
emergency situations
• Allows you maintain the “safety cushion” around your
vehicle.
• Reduces the risk of death or serious injury to victims in the
event of a crash or other accident.
• Helps to maintain a safer traffic flow, discouraging others
from zipping in and out of lanes recklessly.
• Is a key factor in driving safely and defensively.
Compromise
Another important defensive driving skill is compromise.
When you cannot separate risks, and you must deal with two
or more at the same time, compromise by giving the most
room to either the greatest or most likely danger. For
example, suppose you are driving on a two-lane roadway with
oncoming cars to your left and a child riding a bike to your
right. The child is the most likely to move suddenly, so you
need a larger space cushion to the right. In this case, moving
closer to the centerline is the correct or best compromise.
Knowledge and Experience
Becoming a good defensive driver requires knowledge
and experience. The beginning driver should learn through
instruction, observation and practice. After you obtain your
learner permit, practice starting, stopping and vehicle control
in a parking lot or other open area with little traffic. Practice
will sharpen your basic skills, as well as build your
confidence.
Your knowledge should include recognition of the
hazards of driving and how to protect yourself. Skill is more
than eye/hand/foot coordination. It is a well-rehearsed
driving strategy, which involves anticipation, reaction and the
constant changing of the space between your truck and
other vehicles. You must continually strive for improvement.
Improvement can be measured in your elimination of risktaking,
your adherence to speed limits and your ability to take
corrective action when necessary.
dot compliance help
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