
Age distribution of drivers in 56 Toyota acceleration deaths, data from Jalopnik and Overlawyered
Enlarge PhotoSo-called "sudden acceleration" is an ugly mix of media frenzy, sophisticated engineering, and complex human-machine interaction.
But recent data on Toyota sudden-acceleration complaints seems to show--with some qualifiers--that the bulk of the incidents ending in fatalities have been reported by drivers aged 61 to 80.
Which leads to a very obvious question: Could it be that human error, not defective design, is at fault here?

Wrecked Toyota Prius owned by Elizabeth James, photo by Ted James, from Houston Press
Age clusters ...
This morning, our friends at Jalopnik posted a fascinating chart showing the age distribution of all the drivers in 56 deaths since 1992 that were linked by the Los Angeles Times to Toyota sudden acceleration.
And the chart is pretty revealing: The highest clusters are the 61-70 and 71-80 cohorts. The median age is 60, and just over half are 60 or older. That's against just 16 percent of drivers over 60 across all automotive fatalities.
They helpfully overlaid the average age distribution of deaths in all auto accidents, which peaks for drivers aged 22-30 and falls consistently thereafter. Death rates overall for drivers 61-80 are just one-third those of the 20-somethings.
... with caveats
There are several caveats. The data does not represent all incidents reported to the National Highway Traffic Safety Administration (NHTSA), because those reports do not specify the complainant's (or driver's) age.
Moreover, the age distribution of all sudden-acceleration complainants should be mapped against the age distribution of Toyota buyers overall, to ensure it's not representative. But we're pretty confident that the average Toyota purchaser is not between 60 and 80.
New York Times op-ed
But it's not just one of those durned auto blogs that suggests age plays a big role. Two media outlets have recently carried opinion pieces reinforcing the continuing belief among automotive engineers that driver error is largely to blame.
The op-ed page of The New York Times, carried a lengthy article last week by Richard Schmidt, a psychology professor at the University of California, Los Angeles, noting that driver error is almost always at fault in supposed sudden acceleration cases.
Based on his work in the 1986 Audi sudden acceleration case, he writes, "The trouble, unbelievable as it may seem, is that sudden acceleration is very often caused by drivers who press the gas pedal when they intend to press the brake."
The Audi allegation
Toyota is likely haunted by the spectre of Audi's 1986 trials, when an inflammatory "60 Minutes" report led to scores of claims of so-called sudden acceleration. Audi's crisis management was a textbook case of what not to do--it clammed up, then it blamed drivers--but it was ultimately exonerated.
A long NHTSA investigation closed the books by saying the problem was "pedal misapplication," though it noted that Audi had spaced its pedal very closely together. By that time, Audi's sales had plummeted to numbers so low that the company almost pulled out of the U.S.
Audi subsequently installed an automatic shift lock, which prevents the car from being shifted into gear unless the brake pedal is pressed. Sudden acceleration incidents from standstill have plummeted in cars with shift locks, which Audi licensed to all carmakers.
[Overlawyered via Jalopnik; The New York Times; Los Angeles Times]

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By AARP Posted: 3/15/2010 12:05pm PDT
By Since Salome Posted: 3/15/2010 12:40pm PDT
So the fact that people 61-80 are the drivers in these so-called "sudden acceleration" cases is cause for--like the man sez--further investigation into not only potential mechanical causes, but also DRIVER ERROR.
Or are you saying that of course no one over 60 EVER makes any errors on the road?
By fakeis Posted: 3/15/2010 12:46pm PDT
To the teenagers getting into accidents. Well, they are novice drivers. You'd expect them to do something unbelievable if they're not used to driving itself. I'm scared to drive behind those "Driver Ed" cars. You'll be amazed what those kids will do. I admit that I was one of them though...
By quasi Posted: 3/15/2010 12:50pm PDT
By Oscar Posted: 3/15/2010 12:52pm PDT
By Al Posted: 3/15/2010 12:59pm PDT
By Eric Berlin Posted: 3/15/2010 12:59pm PDT
By R2Dad Posted: 3/15/2010 1:14pm PDT
By Bruce Richter Posted: 3/15/2010 1:55pm PDT
By AutoBoy Posted: 3/15/2010 3:18pm PDT
By Just a Guy Posted: 3/15/2010 5:19pm PDT
By AutoRunaway Posted: 3/15/2010 5:32pm PDT
By Damien Thomas Posted: 3/15/2010 6:18pm PDT
By rocket88 Posted: 3/15/2010 8:20pm PDT
By Bah Posted: 3/15/2010 10:07pm PDT
That's what "median" means.
By Joe517 Posted: 3/15/2010 10:44pm PDT
By bob the 20-something Posted: 3/16/2010 12:49am PDT
By whiz Posted: 3/16/2010 4:06am PDT
By G35man Posted: 3/16/2010 6:23am PDT
If you lived here and did statistics, you would notice the majority of the serious accidents involve the elderly. Again, I also am over 60, but I am stating facts.
Does this relate to the Toyota mess ? I don't have the answers there. Is the press bias on the reporting ? YES, thanks to Detroit, the UAW, looking to gain sales through any way possible.
By IS250man Posted: 3/16/2010 6:30am PDT
If you lived here and did statistics, you would notice the majority of the serious accidents involve the elderly. Again, I also am over 60, but I am stating facts.
Does this relate to the Toyota mess ? I don't have the answers there. Is the press bias on the reporting ? YES, thanks to Detroit, the UAW, looking to gain sales through any way possible.
By Recycleest Posted: 3/16/2010 7:11pm PDT
By Diamante Posted: 3/16/2010 9:32pm PDT
By Steve Posted: 3/17/2010 9:02am PDT
By Cgad Posted: 3/19/2010 10:49am PDT
Maybe you should be the one who should wake up. Other automakers in fact also have thousands of unintended acceleration complaints under their belts as well over the past few decades. In fact, Ford has 20 deaths cited in the complaints in the same time period that Toyota had 19 deaths cited in the complaints (pre-media hype). It makes you wonder what our government's priorities are, doesn't it?
Just because it's not reported in the media doesn't mean it doesn't happen. Ugh.
By CharlieSeattle Posted: 3/24/2010 3:19pm PDT
I think if Toyota removes the Kamikaze chip from the computer, the problem will go away.
By Chris BC Posted: 3/25/2010 8:22pm PDT
It's safe to assume the driver is pressing on something, unless they're completely clueless, so it's not an issue of having to override the engine with a mind of its own. It's an issue of getting their foot off the gas. Once you know the brakes will stop the car at full throttle, and that some pedal is being pressed, there's nothing left to debate.
By AARP Get a Clue Posted: 3/8/2011 11:20am PST
AARP members, listen up. I tore up the application they sent me in the mail that same week. In CA they have lobbied strong and hard against testing seniors. All this about Toyota floor mats, etc. The senior issue has been around much longer and needs to be dealt with in a priority manner. The AARP lobby and constituents need to get a grip on reality!
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