Tag Archives: rearend

Poor NHTSA Standards Encourage Seat Back Fatalities in Car Seats (Another Reason to Rear Face)

This crash test dummy might be wondering why the NHTSA doesn't have tougher seat standards.
This crash test dummy might be wondering why the NHTSA doesn’t have tougher seat standards.

I’ve spent a lot of time deconstructing fatal crashes and writing about the safest kinds of vehicles sold each year in various classes, with the goal of keeping parents and children safe throughout the United States. However, it’s hard to keep your family safe when the organizations charged with setting safety standards let us down, and a recent article from CBS News adds one more data point to the long list of ways in which the NHTSA’s standards are woefully inadequate. We’re going to break down that CBS report and look at the issue through a number of lenses.

What are the NHTSA FMVSS safety standards?

In short, the NHTSA comes up with standards under the United States Code, Title 49, Ch. 301, in Motor Vehicle Safety, called Federal Motor Vehicle Safety Standards, or FMVSS, which are basically a set of rules manufacturers need to comply with in order to sell their wares in the United States. Each standard describes a minimum level of safety performance, and the relevant one here is  FMVSS 207, which deals with Seating Systems. Like a great many FMVSS standards, however, it doesn’t go nearly far enough. Here’s a summary of it:

This standard establishes requirements for seats, attachment assemblies, and installation, to minimize the possibility of failure as a result of forces acting on the seat in vehicle impact.

nhtsa - v08491P047In other words, it has to do with how much force seats should be able to withstand in a vehicle during a collision to keep from failing, whether through disintegration, collapse, or disconnection. The problem is that the standard is a weak one, as are many other FMVSS standards, which means it has very little protective effect in a crash if a manufacturer doesn’t build beyond it. It was put into effect on January 1st, 1972, in a time where no vehicles in the US came standard with front or side air bags, ESC, or even ABS. Seat belt use was optional in all 50 states back then, and the road fatality rate was far worse than it is today. That’s the world the NHTSA is still living in with that standard.

Experts say in certain crashes, some car seats can break and collapse, leading to paralysis or death. Even if you bought a car with a five-star safety rating, if you’re hit from behind, your seat may not protect you or the children sitting behind you.

In other words, FMVSS 207 doesn’t go far enough, and when manufacturers don’t go any farther than the standard (which is what most manufacturers do, since they’re in the business of making money first, rather than keeping people safe), these seats break down. And if your children are forward-facing behind these seats, they’re directly in the line of fire.

Can rear-facing reduce the risks of severe injury or death from seat back collapse?

In a word: yes. This is yet another reason to rear-face. But the knowledge came too late for many families, including the Warners profiled in the article:

Sixteen-month-old Taylor Warner loved the water and was just learning to walk.

“She had about six weeks when she was toddling around, and then it was over,” said her mother, Liz Warner. Five years ago, the Warners’ 2010 Honda Odyssey was rear-ended at 55 miles an hour. Taylor was in her car seat behind her father.

“I thought maybe she had just fallen asleep. And then when I looked and I noticed there was blood coming out of her face, I knew that something else was wrong,” said Liz Warner.

That something was her father’s seat back. It broke after collapsing on impact and struck Taylor in the face, killing her.

“And it was all because of some stupid car that we thought was the safest thing we could get for our family to protect them,” said Warner, crying.

But crash tests show what can happen when a seat collapses — the driver is launched backwards and slams into the child’s face.

nhtsa - v08491P056Make no mistake–this was a terrible, preventable tragedy. But it is important to note that it was preventable in many ways. One of the most obvious ways would have been through tougher federal standards in the case of FMVSS 207. Another would have been if Honda had spent a tiny amount more money per seat to reinforce their front seats beyond the government requirement. Another might have been if Taylor had been sitting in a different seat position, such as in the center position or in the 3rd row of the vehicle. Yet another, and that which we have the most control over as parents in any vehicle, would have been if Taylor had been rear-facing.

I’ve written before about the protective effects of rear-facing, in terms of the dramatic reduction in severe injury and fatality risks it brings our children, and in terms of how many more children should rear-face for far longer than they do in the United States. I’ve written about how it has been standard practice to rear-face until 4 in Sweden, where parents lose the fewest children to car collisions per capita, for decades. But how would the Warners have known this? The AAP, after all, didn’t change their recommendation from rear-facing to 1 to rear-facing to 2 until 2011.

The collision described above occurred in 2010.

How can I reduce the risks of my child being injured or killed in a seat back collapse?

Unfortunately, we can’t wait for government organizations to act in our  best interest. The NHTSA has known of this issue for more than 30 years and has refused to update its legislation, undoubtedly due to relentless lobbying by the auto industry. However, if you read this blog, you know that best practices are best practices whether or not they’re practiced in the United States. To reduce the risks of losing a child in this kind of tragedy, I’d recommend parents:

Rear-face your children as long as you can

Seats like the Clek Fllo, Clek Foonf, Diono Rainier, Graco Extend2Fit, Safety 1st Grow and Go EX Air, and Safety 1st Advance EX 65+ Air+ allow most children to rear-face until they’re at least 5, while seats like the Diono Radian RXT, Chicco NextFit, Graco Size4Me 65, Britax Advocate ClickTight, and many more will allow most children to rear-face until they’re at least 4. There are too many reasons to continue rear-facing to start forward-facing a minute before you have to.

If you have one child, place him or her in the center position

It’s statistically the safest position compared to either outboard position, as it’s impossible for a child to receive a direct hit from a side impact collision there, and it also provides a much greater amount of protection against a seat back collapse than a car seat installed directly behind a vehicle seat.

Install your car seats in the 3rd row

There’s a common misconception that the 3rd row isn’t as safe as the 2nd row due to the potential for rear impacts, but the statistics show children are more likely to suffer injuries the farther forward they sit in a vehicle, simply because the majority of fatal collisions are frontal, head-on collisions. Fatal rear-end collisions are the most rare, making the 3rd row the safest row in a 3 row vehicle, on average.

Buy a Mercedes-Benz, BMW, or Volvo

This is by far the most expensive option, but it’s worth noting that these 3 companies have an extensive history of going above and beyond federal guidelines in many elements of their vehicle design. Per the researchers questioned in the report, these were 3 automakers who consistently designed seats to higher standards than the federal guidelines. You can read my 3 across guides for vehicles by the manufacturers above (and a great number of other manufacturers) here.

If you find the information on car safety, recommended car seats, and car seat reviews on this car seat blog helpful, you can shop through this Amazon link for any purchases, car seat-related or not. Canadians can shop through this link for Canadian purchases.

Two Men Killed in Plainfield Township, MI, in Car vs. Pickup Crash

Who:
John Wellington Pomeroy, 49, and William Parker Kochis, 29, were killed on southbound US 131 in Plainfield Township, OH close to the Post Drive exit on 9/10/13 at 8 AM. They were part of a seven car crash caused by 58 year old Patrick Allen Doerr, who was one of many injured. Pomeroy and Kochis were in a 2008-era Chevrolet Malibu, while Doerr drove what was likely a 2009-era Ford F-150. Kochis was a father of 4 and the passenger in the Malibu.

How:
Per police reports, Doerr drove his Ford into rush hour traffic and rear-ended the Malibu in which Kochis and Pomeroy rode. Doerr was reportedly traveling at 84 mph and did not brake while the Malibu was traveling at 5 mph. Five more vehicles collided as a result, as the Malibu slammed into them and then stopped on a guard rail. Both occupants died instantly. Doerr denied falling asleep and using drugs, but refused a blood draw. A later urine test at the hospital revealed Doerr had cocaine and opiates in his body, but the results were inadmissable in court. Doerr, as a result, is only being charged with a misdemeanor, and was recently sentenced to the maximum sentence allowable, a year in jail.


Why:
This case, from an ethical perspective, is appalling. Doerr crashed into the Malibu because he was under the influence of drugs; this is why he refused the blood test after the crash. However, he is only being charged with a misdemeanor, which carries a maximum penalty of a year in jail. The law here needs to be changed; police on-scene blood draws of surviving drivers should be mandatory in every fatal collision.

Ethics aside, this was a straightforward case of impaired driving. The 2008-era Malibu weighs ~3424 lbs. Unfortunately, none of its safety ratings were particularly relevant here due to the rear impact. The physics are all that matter here. It was hit by a 2009-era F-150, which weighs ~5199 lbs. Given the likely speeds of the collision (~80 mph), the collision likely imparted at least 1.51MJ of energy into the Malibu. Vehicles aren’t tested for rear impacts, so there’s no easy guide regarding the amount of force the Malibu was designed to safely handle from the back. What is clear is that 1.51MJ is a tremendous amount of energy, and it led to a catastrophic amount of intrusion into the Malibu.

The question of why Doerr survived, given the tremendous forces in the collision, is worth asking. The F-150 had a “good” frontal score and was designed to handle 377KJ of energy from such an impact. This means the F-150 experienced 400% as much energy as it was designed to. The fact that Doerr was able to survive is remarkable, and is a testament to the weight and construction of the F-150. However, that same weight and speed was what directly led to the death of the people he killed due to his negligence.

This was an entirely preventable tragedy, as are so many crashes in this country.

If you find the information on car safety, recommended car seats, and car seat reviews on this car seat blog helpful, you can shop through this Amazon link for any purchases, car seat-related or not. Canadians can shop through this link for Canadian purchases.

Tracy Morgan, 45, by New Brunswick, NJ, Injured in Van vs. Semi Crash

Who:
Tracy Morgan, 45, a noted celebrity and former star of “30 Rock”, was critically injured at around 1 AM close to New Brunswick, New Jersey on the Turnpike on Saturday, 6/7/14. He was a passenger in a 2014-era 2500 High Roof 170″ WB Mercedes Sprinter van, in which James McNair, 63, Morgan’s writer, was killed and three others–Jeff Millea (critically), Ardie Fuqua, and Harris Stanton, were also injured. The driver was unhurt. The collision involved six vehicles and took place at mile marker 71.5 in the northbound turnpike. They were impacted by a Peterbilt semi trailer driven by Kevin Roper, 35, from Georgia. A Buick, Ford-150, and another semi trailer were also involved in the collision.

How:
Per police reports, the Sprinter was rear-ended by an 18-wheeler whose driver had been dozing and had not noticed that traffic had begun to slow in front of him until it was too late. He noticed the Sprinter just before the impact. After being impacted from behind, the Sprinter rotated clockwise and rolled over onto the driver side. While swerving, it contacted the Buick, which then contacted the F-150 and second semi. The truck driver was charged with assault by auto and death by auto.

Why:
This is another case where fatigue behind the wheel led to needless deaths and injury. Such crashes are more likely at night, as was this one, since individuals are more likely to fall asleep while driving during nighttime hours, since humans are diurnal, or naturally active during the daytime.

Investigating the physics of the crash, the survival of Tracy and most of the individuals in the Sprinter was likely due to the low relative difference in speed between the Sprinter and the Peterbuilt semi truck. The 2014 2500 Sprinter weighs 6128 lbs. It was impacted by a Peterbilt semi that can weigh 35,000 lbs or more, or 5711% of the Sprinter’s weight. As a result, if the Sprinter were traveling at 35 mph due to the traffic while the semi were traveling at 65 mph at the moment of impact, that would have created a 30 mph speed differential.

Given the likely speeds of the collision, then (~30 mph), the collision likely imparted at least 1.43MJ of energy into the Sprinter. This is a tremendous amount of energy, and explains the significant structural damage and collapse of the rear portion of the Sprinter. However, the structural strength of the Sprinter design kept the entire vehicle from caving in, preserving the majority of the passenger compartment. It is likely that the sole fatality that resulted occurred because James had been sitting in the rear-most portion of the vehicle, and may have suffered the most trauma as a result.

It is currently unknown how many of the individuals on the Sprinter were wearing seat belts. However, wearing such belts would certainly have aided them in the collision, simply by giving them time to “ride down” the collision instead of being thrown within the vehicle as it was thrown forward and into other vehicles due to the impact of the Peterbilt.

This was ultimately a wholly preventable tragedy. Statistics show that truck driver fatigue is a significant risk faced by the majority of truck drivers on the road, who can drive for as long as 11 hours in a row without being required to take a break. Furthermore, many drivers work longer than these requirements in order to bring in their deliveries on time. Changes need to be made in these regulations to protect truck drivers and ultimately to protect all travelers on the road by extension. This becomes particularly evident when one considers that semi truck sleep regulations have actually become *weaker* since 2004, when drivers were only allowed to drive up to 10 hours before taking a break.

While the driver certainly bears responsibility for causing the collision, we need greater changes at the legislative level to reduce the risks of such tragedies reoccurring.

If you find the information on car safety, recommended car seats, and car seat reviews on this car seat blog helpful, you can shop through this Amazon link for any purchases, car seat-related or not. Canadians can shop through this link for Canadian purchases.

Two Adults Killed while Toddler Lives in Fridley, MN, in Car vs. Semi Crash

Who:
Wilbur Hooks, 32, and Patricia Hooks, 31, were killed on Friday, 4/4/14, at around 8 PM, on eastbound I-694 in Fridley, Minnesota, when their 2007 Chrysler 300 crashed into the back of a semi-trailer close to Matterhorn Drive. Patricia had been pregnant and was due this fall. Both Hooks died at the scene on impact while the couple’s son, Bishop, 2, survived in the rear seat with minor injuries. The driver of the semi, Steven Pothen, 68, was uninjured.

How:
Per reports, the Chrysler 300 traveled at a high rate of speed, perhaps in excess of 100 mph, while weaving in and out of traffic until colliding with the rear end of a semi trailer. Both adults died at the scene. Patricia was wearing her belt and her airbag deployed. Bishop was in the rear seat in a car seat and was not seriously injured.

Why:
This was, sadly, another textbook example of a passenger vehicle-large truck fatality due to a rear underride. It looks like a full frontal overlap in the picture. Trailer rear underride guards are designed to withstand a 35 mph full or moderate overlap without causing catastrophic injuries (death) to the impacting vehicle, which indicates Hooks must have been traveling at significantly more than 35 mph (relative to the trailer) to have impacted with enough force to lead to that level of cabin intrusion (which would be classified as catastrophic, as the intrusion extended past the B frame of the vehicle). Indeed, various reports have suggested they were traveling at over 100 mph, which would have been at least 35 mph faster than a semi trailer traveling at 65 mph.

Catastrophic levels of intrusion are virtually unsurvivable. Despite the strong front safety score of the 2007 300, there was virtually no chance of survival for front passengers in such an impact. The reasons for the crash are still unknown, but they almost certainly were due to driver inattention and speeding. Family reported Hooks “loved to drive fast,” while the vehicle was reported to have woven through traffic before the impact, and no sign of braking was detected.

It is essential to repeat that this crash was preventable, but that virtually no passenger vehicle exists that would have protected them at the speeds at which they likely crashed, as the significant marker of trailer underride crashes is that the part that results in death–the trailer itself–is above the crash-absorbing structures of virtually every vehicle on the road.

The most significant part of this story, however, is not the deaths of the parents, but the survival of the child. 2 year old Bishop Hooks survived the crash because he was strapped into a car seat. It is unknown whether or not he was rear-facing, but given his survival with non-life threatening injuries, it is possible that he was. Of course, it was also necessary for there to be a survivable space within the vehicle, which clearly only existed in the rear of the vehicle. However, without a car seat, Bishop would not be alive today. He will live with his grandmother, per family reports.

Rear face your children as long as possible.

If you find the information on car safety, recommended car seats, and car seat reviews on this car seat blog helpful, you can shop through this Amazon link for any purchases, car seat-related or not. Canadians can shop through this link for Canadian purchases.

Olivia Lopez, 86, of North Bergen, NJ, Killed in SUV-Semi Crash

The Who:

Olivia Lopez, 86 (killed) on 3/19/14. She was the front passenger in a 2007-era Honda CR-V driven by her husband, Hugo Lopez, 83, while their daughter, Juana Lopez, was in the back seat behind the driver. The collision occurred at 4:50 PM on a ramp in North Bergen that led to Route 495 West.

The How:

According to Lopez, the CR-V suddenly accelerated. The vehicle hit 4 or more other vehicles before crashing into the back left corner of a tractor trailer. Hugo told police he could not stop the vehicle before it crashed. Olivia died at the scene, while her family members had minor injuries.

The Why:

It is impossible to tell what went wrong in this case, butt is possible that this may have been an unfortunate case of driver error. The 2007-era CR-V is one of the safest cars on the road, as the AWD version had a driver death rate of 7 while the FWD version had a driver death rate of ~20, per the most recent IIHS status report on driver death rates. Unintended accelerations do not appear to be a common complaint in safety reports on the NHTSA website. However, it is important to remember that individual vehicles can and do have malfunctions, and without a detailed analysis of the throttle mechanism of the vehicle, it is impossible to say whether the error rested with the vehicle or the driver. Unfortunately, regardless of what led to the collision, the life of a dear family member was lost.

Structurally, what occurred was a small frontal overlap crash involving rear underride into a semi-trailer. Rear underride small overlap crashes with semis are particularly deadly, as this IIHS report indicates, where a 35 mph 30% overlap crash was almost invariably fatal to the simulated driver. Severe cabin intrusion occurred into the passenger side as the CR-V broke past the underride guard, and sadly, the passenger was almost certainly killed instantly. Please drive safely and watch out for semi trailers; they are by far the most dangerous vehicles on our roads in terms of likelihoods of causing fatalities in multi-vehicle collisions.

If you find the information on car safety, recommended car seats, and car seat reviews on this car seat blog helpful, you can shop through this Amazon link for any purchases, car seat-related or not. Canadians can shop through this link for Canadian purchases.