“5 Stars”...How Safe Is That?



What exactly does the government
“5 Star Crash Rating” mean?  You won’t believe the answer!!  If you’re in an accident, these ratings may not help you.
 
Almost every car company proudly displays their “5 Star Safety Crash Rating”, each manufacturer boasting their cars are safer than the others.  But what does it all mean to you? How do they determine safety and how do they come up with a star program?  Does a vehicle with a less than 5 star rating really mean it’s not safe to drive?  
 
Let me begin to explain what they are all talking about.  The ratings are determined by crash dummies, wired with sensors, placed in vehicles front and rear seats, and crashed into barriers to simulate an accident.  But before we get into the particulars, let’s first understand the parameters.

1. The tests are conducted at speeds of 35 to 38.5 mph. Wait a minute.....35-38.5 mph?  Who drives 35-38.5 mph. when the rest of the world is traveling at 45-75 mph?  The government safety ratings do not cover anything over 38.5 mph.  The Insurance Institute for Highway Safety raises the bar though...they test at 40mph; a full 1 1⁄2 mile per hour faster...zoom, zoom.

2. Crash dummies only simulate full size adults, not teens, not children, not infants.  Aren’t teenagers, children and infants passengers too?  Why don’t they count in the ‘rating’ system?
The crash dummies are wearing seat belts in all cases, front and rear seats...(everyone in vehicles always wears their seat belts, don’t they?). 

3.
The crash dummies are wired to measure injuries to head, neck, chest, pelvis, legs and feet, but all these findings are not included in the rating.   The ratings only measure head and chest injuries for frontal crashes and head injuries only for side crashes (evidently, other injuries are not serious enough to count in a government study).

4. Impact assumptions are for similar vehicles, differing no more than 250 lbs.  This means if you are driving a small, full size or luxury car and you hit an SUV or a minivan...the rating doesn’t count (and it certainly doesn’t count if you happen to hit a tractor trailer...those crashes might change the star ratings).


5. Finally, the rating is only referring to injuries that require immediate hospitalization or are life-threatening.  
 
How about rear-end crashes, what are the ratings for that?  Well, here’s what the government says about that: 

 “NHTSA’s New Car Assessment Program has a limited budget and must
 concentrate its ratings on front and side-impact crashes which every year are
responsible for the highest percentage of deaths and serious injuries.”
 
 
Here is a summary of the ratings we so proudly hold valuable...
 
For frontal crash ratings 

5 stars
= 10 percent or less chance of serious injury
4 stars
= 11 percent to 20 percent chance of serious injury
3 stars
= 21 percent to 35 percent chance of serious injury
2 stars
= 36 percent to 45 percent chance of serious injury
1 star
= 46 percent or greater chance of serious injury


For side crash ratings

5 stars
= 5 percent or less chance of serious injury
4 stars
= 6 percent to 10 percent chance of serious injury
3 stars
= 11 percent to 20 percent chance of serious injury
2 stars
= 21 percent to 25 percent chance of serious injury
1 star
= 26 percent or greater chance of serious injury
 
...and here’s what this all means to you.
 
1) If you happen to be in a crash faster than 38.5 mph, forget about the rating scales altogether!

2) If you are a teen, child or infant sitting anywhere in the car, forget about the rating scale altogether!

3) If you hit any vehicle that is larger, smaller, or not almost exactly what you are driving, forget about the rating scale altogether!

4) If you are not wearing your seat belt, forget about the rating scale altogether!

5) If someone at the accident scene says “you look fine”, forget about the rating scale altogether!

6) If you happen to be driving a “5 Star Rated” vehicle at 32 mph, hit a car head-on exactly like yours and are               
    wearing your seat belt, according to the ratings you still have a 1 in 10 chance of being killed!

7) Lastly, if you are driving a “1 Star Rated” vehicle (I don’t know of any) and are in the same accident, you still have a 50-50 chance of surviving.
 
It seems that we have a rating system that sounds good, seems like a good measurement of safety, and should provide us with adequate information regarding the dangers of an accident.  But for goodness sake, our rating systems barely work for restaurants and do nothing for the motion picture or record industry.  How can we think, even for a moment, that it will save our life?
 
On one hand, airbags and seat belts have certainly saved people from serious injury.  But on the other hand, the truth is we have created a “Star System” offering incredible false security; a means of telling ourselves that we are totally protected should we get into an accident, when in fact we are barely protected at best.   The truth is we are not driving around in a “bubble of airbag safety” by any means.  Regardless of the safety rating of any vehicle we must drive as if our life depended on it!  It does!!
 
Unibody construction, seat belts, side impact bars in our doors, front, side, knee airbags and curtains, shock absorbing bumpers and crumple zones are all good ideas.  But we must be fundamentally aware that none of these safety items will save us if we are driving at normal highway speeds, and an oncoming vehicle crosses into our lane.  
 
Driving on today’s roads, with speed limits up to 75 mph is a serious and life threatening event.  We need to depend on ourselves, not on a rating system.  
 
So the next time you hear about a “5 Star Rated” vehicle, ask yourself “How safe is that?”.
 



Source of information obtained from the following:
 
National Highway Traffic Safety Administration / Safercar.gov
 
Insurance Institute for Highway Safety   

 

 

Print | posted on Tuesday, July 10, 2007 8:45 AM

Comments on this post

# re: “5 Stars”...How Safe Is That?

Requesting Gravatar...
Hey, it's really useful !
Great job.
I am just thinking that 5 stars is used only to sell more.
Since some years... the max is always 5 stars... mhhh but I have a quad core in my pc... some years ago NOT :)

I have read also that doors bell can help to reach a star, is it true?
Left by gab on Jul 11, 2007 7:11 PM

# re: “5 Stars”...How Safe Is That?

Requesting Gravatar...
good effort
BUT and it's a big round but
most people inside cities or towns drive within that speed limit 35-40 mph
encap test for children in back seats as i read b4..
i agree that it's not an accurate measure but it's all about relativity i mean a 5 star car is definitly better than a 1 star car in a 70 mph crash well u propably gonna get killed in both but u just hope ...
i really believe it's a psychological feeling of security an attempt at trynig to calm ur inner deep self that if u crashed it might just be fine one way or another


Left by Neo on Jul 11, 2007 10:56 PM

# re: “5 Stars”...How Safe Is That?

Requesting Gravatar...
never seen a 1 star? i think this german test video qualifies:
http://www.autoblog.com/2007/06/22/brilliance-bs6s-adac-crash-test-is-anything-but/
Left by John on Jul 12, 2007 6:09 AM

# re: “5 Stars”...How Safe Is That?

Requesting Gravatar...
When you see a car like the Chinese Brilliance pop apart like it's made of wet tissue paper, you are still kind of glad tests like this are done.
Left by Jmotz on Jul 12, 2007 6:15 AM

# re: “5 Stars”...How Safe Is That?

Requesting Gravatar...
To Jmotz, Have you driven a Chinese car before? If not, how did you get your shabby bias? If you have, and the car is really bad like you said, then, how did you survive from driving it? Maybe you left your above words from heaven or hell? Or even maybe your body got a Five star ca rash rating!!!Wow, lucky you, but I won't drive you!
Left by Todd on Jul 13, 2007 2:54 PM

# re: “5 Stars”...How Safe Is That?

Requesting Gravatar...
What a pathetic and misleading article. So you would drive a robin reliant over a 5 star rated car ? Hmmm somehow I don't think so.
Left by Martin on Jul 16, 2007 9:47 AM

# re: “5 Stars”...How Safe Is That?

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Way back when the government first started rating "crash-worthiness" of cars, they used an entirely different system than they do today. After a while it became clear to even the most non-technical types that the safer vehicles all were the bigger and heavier ones. Typical of government-types, they were the last ones to notice this, and the fact that the safest vehicles were also the most egregious "violators" of EPA fuel economy numbers. It then became clear that one arm of our government (surprise) didn't have a clue as to what the other was doing. In order to eliminate this "conflict" they had to come out with a rating system that absolved itself of this critical information. Thus evolved the "Star Rating System", which is one of the Great Hoodwinks of all time. In very, very general terms, more stars are probably better. But I sure wouldn't base a vehicle purchase decision on any star rating. The FACT of the matter is that Newton's Laws can't be changed, even by our finest politicians. My eighteen year old daily driver one-ton pickup truck, which I still drive because I can't afford anything new, weighs about 6,400 pounds without any gas in its tank or me in the cab. It has ZERO airbags and a ZERO star rating. But it's probably one of the safest vehicles on the road. In a collision with any 2700# car, who do you think is at greater risk of injury, even if that car has 23 airbags in it? The bottom line is this: Yes, gas is expensive. Driven an equal number of miles, "gas-guzzling trucks and SUV's" aren't quite as kind to the environment as dinky little cars are. I plan all my trips carefully and make fewer of them than most people do. If you don't value your life very much, drive a dinky little car. Otherwise, find a reasonable compromise that meets your needs, remaining mindful of the WEIGHT of that vehicle compared to what's on the road today. If side airbags are available, get them. Ignore the frontal airbag count, as they have probaby killed about as many people as they've saved. Whether you like it or not, "big iron" will continue to run around out there on the nation's roads with you. Buy something a bit larger than what may be "politically correct" if, like me, you're allergic to pain. Don't completely ignore government ratings of anything. But certainly don't make them the core of any purchase decision.
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