Print 23 comment(s) - last by mindless1.. on Jun 14 at 3:03 PM

Tire pressures play a big factor in accidents

A government study performed in the United States has found that 5% of vehicles involved in crashes experienced some sort of tire problem. The moral of the study is that underinflated tires are at significantly higher risk of causing an accident. The National Highway Traffic Safety Administration -- using data gathered between 2005 and 2007 -- conducted the study.
According to the study, vehicles with tires underinflated by 25% or more were three times as likely to be involved in the crash linked to tire problems. The study also found that 66% of tire related crashes involve passenger cars.
"Tire problems are inherently hazardous to vehicle safety," the NHTSA report said. "When these problems emerge in the pre-crash phase, the time window for attempting a crash avoidance maneuver is normally very small."
Another discovery made in the study includes that poorly maintained tires are tires that are underinflated are also more likely to experience problems in bad weather.
Of the sample vehicles that the study looked at it was determined that 11.2% had problems linked to tires in bad weather compared to 3.9% when weather was not a factor. Senior vice president for public affairs cites the new tire study for the Rubber Manufacturers Association, Dan Zielinski, as a clear indication that proper tire maintenance and inflation are critical for driver safety.
Tire pressure monitoring systems are installed in all 2008 model year and newer vehicles due to a U.S. government mandate. The tire pressure monitoring system alerts drivers when any tire is 25% or more below the recommended inflation level.

Source: Detroit News

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RE: Observation tells me
By Azethoth on 5/22/2012 5:22:09 AM , Rating: 0
Wow, you need a new nick because maths is too hard.

"vehicles with tires underinflated by 25% or more were three times as likely to be involved in the crash linked to tire problems"

So 3/4 of that 5% was due to underinflated tires.

As for the statistical breakdown about the 5% of tire related crashes you do know that with the large US population that is a large quantity right? Do you know what statistically valid is?

Or maybe you are just here to bitch about politics quite unrelated to the science discussed here.

In that case you need to use uppercase, not bold. It will surely make your argument more powerful.

RE: Observation tells me
By mindless1 on 5/23/2012 8:08:40 PM , Rating: 3
There are lots of things wrong with the stats as mentioned.

1) 5% of vehicles involved in crashes experiencing tire problems does not equate to tire problems being the CAUSE of 5% of crashes. Tires can easily be damaged during the crash or the attempt to avoid crashing and hitting a curb, etc. "Couldn't stop in time or couldn't swerve around" is not proven to be a fault merely because tires are underinflated, any car, tire, pressure, and road surface has its limits.

2) If only 5% of vehicles experienced tire problems, and tires underinflated by 25% or more were three times as likely to crash, that is not a proof that underinflated tires are three times more likely to crash, it only means underinflated tires are 3 times more likely to crash due to tire problems (within the 5%), which you pointed out and I agree with.

So the article title is wrong, vehicles with underinflated tires aren't even remotely close to being three times more likely to be in an accident, only more likely to be in the 5% of accidents that were tires-as-initial-failure, caused... "IF" that 5% figure is right which I doubt.

I'll make up a number and throw it out there. 98% of crashes are caused by driver inattention or excessive speed for the conditions. If one of the conditions was driver inattention to tire pressure OR driving too fast for the inflation level of your tires, well yeah there's no oversimplified answer like keep your tires inflated more, it's still the driver not the equipment.

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