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ROLLOVER
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FACT #1: |
More than 1/2 of truck drivers' deaths are due to
rollover. |
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FACT #2: |
Most rollover accidents are entirely preventable. |
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FACT #3: |
Advisory speeds for ramps and curves are for CARS and are
NOT safe for high-profile vehicles, such as trucks. What happens when a load
of swinging meat tries to negotiate a curve too fast?
Find
out |
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FACT #4: |
Rollover is even more of a problem for high center of
gravity vehicles such as tankers and livestock trailers but even dry/reefer
trailers can be loaded with a high center of gravity. |
ROLLOVER CAN ALMOST ALWAYS BE BLAMED ON ONE THING:
EXCESSIVE SPEED
A Recent Example:
Beer haul hits
skids on Big I
A big rig hauling 1,600 cases of Bud Light
overturned July 7, resulting in the first unscheduled closure during Big I
re-construction in Albuquerque, NM. The rig, driven by Max Chowdhury of Wichita,
KS, drove up the northbound I-25 on ramp from eastbound Interstate 40
too fast
and laid over onto the concrete barrier, skidding on its side for more than 200
feet....

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Why Do They Rollover? |
A truck/trailer obviously sits much higher
off of the ground than a car does. When a car comes into a turn or curve too
fast, the first
thing it will do is skid.
When a truck/trailer comes into a turn or curve too fast,
the
first thing it will do is
rollover.
It is the nature of the vehicle. Further, a car will usually allow you to be
quite a bit higher than the Advisory Speed before it will go into a skid. A
truck, on the other hand, will NOT tolerate ANYWHERE NEAR as much excess
speed before it will rollover. It is somewhat similar to the difference
between, say a Camaro and a pick up truck. The Camaro is built for cornering
and sits low to the ground. The pick up sits higher. For those of you who
have driven both types of vehicles, you know that you don't take corners as
quickly in the pickup as you do in the Camaro. The difference between a
tractor and a car is much, much, much more pronounced than between a Camaro
and a pickup, but just so you get the idea... |
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What is "High Center of
Gravity" |
Think about this: you have
just left the grocery store and have two sacks. One sack has canned goods in
the bottom and a couple boxes of cereal on top of those cans. The second
sack has large, family size frozen tv dinners in it. They are relatively
heavy and completely fill the sack. When you go to your car to put the sacks
in, (don't tell me you use the drive-up) you know you can put the sack with
the cans and cereal anywhere ... it is not going to fall over. The tv dinner
sack, though, has to be wedged or leaned up against something or it is going
to fall over the first time you turn. The tv dinner sack has a higher center
of gravity than the can sack. The tv dinner sack's weight is the same at the
bottom as it is at the top -- whereas the canned sack contains all it's
weight at the bottom. The canned sack is far more stable because of this. A
semi-trailer is very similar. Sometimes you'll have pallets that are only 4
foot tall (can sack). Other times you'll have pallets that are only a couple
of feet off the ceiling (tv dinner sack). Hey, it's a corny analogy but ? |
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How Can I Avoid Rollover? |
If I said I could give you
a guarantee that you'd never rollover, would you believe it? Of course you
wouldn't. For one, don't use the word "never". It's a terrible word and an
invitation to disaster. For two, there are no guarantees and that goes
triple for trucking. No, but really, I have a pretty good guarantee for you
-- it works almost* every single time to prevent rollover. This is going to
sound too incredibly easy to be believed, but it really is just THIS EASY.
Just click HERE..... |
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NEXT |
This article is an excerpt from "Driver's ABC's, Surviving the First Year," modified for the Web.
This article may appear in more detail or in a different format in the book version.
Copyright 2000-2007, Creative Curriculum FTTI, All Rights Reserved, no reprint without permission.
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