Category Archives: Impaired Driving

Most Wanted List Progress Report: Highway Safety

By Member T. Bella Dinh-Zarr, PhD, MPH, and Robert Molloy, PhD

The NTSB is releasing a series of blogs highlighting the progress the transportation community is making in each mode to advance issues on our 2017–2018 Most Wanted List. This series sheds light on the progress made and what needs to be done going forward to improve transportation safety. This is the second post of the series. 

 

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Member Dinh-Zarr talks with attendees during the highway session of the Most Wanted List midpoint meeting

We’re now midway through the 2017–2018 Most Wanted List cycle, and we’re eager to learn how this year will measure up to previous years. The past 2 years have resulted in an increase in highway traffic fatalities­­—from 32,000 roadway deaths per year in 2014 to more than 37,000 in 2016­­—so clearly, improvements are vital. We checked in with stakeholders on the progress they’re making to address the most pressing issues, and they’ve updated us on their successes and struggles. Here’s where we stand.

Install Collision Avoidance Technologies

Collision avoidance technologies can reduce the number of deaths and injuries on the nation’s roadways now. Today, automatic emergency braking (AEB) and forward collision warning systems already work to reduce rear-end crashes in equipped vehicles, and we’ve been working to encourage industry and vehicle manufacturers to adopt such systems. In 2017, we cohosted a roundtable with the National Safety Council on commercial vehicle (heavy-duty truck) use of advanced collision avoidance technologies and learned that truck manufacturers are beginning to see high customer demand for forward collision avoidance systems on their trucks. During the roundtable, one manufacturer indicated they were making the technologies standard on their trucks, while another mentioned that over 60 percent of their customers purchase vehicles with technology. In addition, the National Highway Traffic Safety Administration (NHTSA) is making progress on evaluation and testing collision avoidance technologies. We continue to advocate for connected vehicle technology because these technologies can further aid in collision avoidance, especially in situations where vehicle resident sensors are weak. Safety should never be considered a barrier to innovation, but rather, an integral component of it.

End Impairment in Transportation

In 2017, we saw progress on reducing alcohol impairment in transportation. Utah became the first state in the nation to pass a law setting a .05 percent blood alcohol content per se limit, and Nebraska and Oklahoma passed all-offender ignition interlock laws. The Federal Motor Carrier Safety Administration (FMCSA) published a final rule establishing the Commercial Driver’s License Drug and Alcohol Clearinghouse, and NHTSA developed training programs addressing the full range of responses to alcohol impairment, from enforcement through adjudication. Yet, we still need more states to strengthen their impaired driving laws and enforcement. We also need improved “place of last drink” (POLD) data to help law enforcement officers deter future violations, and we need better methods to measure impairment by drugs other than alcohol.

Require Medical Fitness, Reduce Fatigue-Related Accidents

In terms of medical fitness, we’ve criticized both the FMCSA and the Federal Railroad Administration because they have withdrawn their advance notice of proposed rulemaking regarding obstructive sleep apnea, which could have led to a rulemaking to address this important issue for people in safety-critical positions. In the highway mode, untreated moderate‑to-severe sleep apnea disqualifies drivers from operating large commercial vehicles because it affects driving safety, yet clear guidance is needed to assist medical examiners in identifying the condition. Nevertheless, the FMCSA has made notable progress by developing a National Registry of Certified Medical Examiners that lists all medical professionals who are qualified to certify drivers. This is a step in the right direction.

The FMCSA took another important step to improve safety when it implemented the electronic logging device (ELD) rule in December 2017. The rule requires the use of technology to automatically track driving and duty time. The NTSB advocated for such devices for many years because they enable better enforcement of hours-of-service regulations and can lead to reductions in drowsy driving among truck and bus drivers.

Eliminate Distractions

Our roundtable earlier this year, “Act to End Deadly Distractions,” brought together survivor advocates and experts throughout industry and government to discuss progress on state laws. We are beginning to see states consider legislation that would completely ban the use of hand-held devices, which highlight manual and visual distraction, but public awareness of the cognitive distraction that can result from hands-free device use remains very low.

Strengthen Occupant Protection

The good news this year on occupant protection is that motorcoaches are now built with lap and shoulder belts for all passenger seating positions. Now we’re focusing on all motorcoach passengers properly using those belts and using them every time they ride. We are urging primary enforcement of seat belt laws for all vehicles, including large buses equipped with belts, at every seating position, and we’re calling for safety briefings on motorcoaches similar to those delivered on commercial flights that explain seat belts and other safety features. As for passenger vehicles, some states, such as Massachusetts and New Hampshire, are considering joining the 34 states that already have primary enforcement of mandatory seat belt laws. Primary enforcement of mandatory seat belt laws is proven to increase seat belt use and, thereby, reduce the number of deaths and injuries on the roads. Regarding motorcycles, we are concerned that some states are repealing their helmet laws, because we know reduced helmet use will lead to more traumatic brain injuries and deaths.

Critical topics that touch on these highway safety issues are speeding and roadway infrastructure. Our recent safety study on speeding establishes what many of us already know but may not always apply: speeding increases the risk and severity of a crash. Here again, along with other safety recommendations, we’ve identified available technologies that can save lives but are not currently in use. The importance of infrastructure was highlighted recently by our highway accident report on a motorcoach collision that killed 2 people and injured 14 others. An unrepaired crash attenuator, an unmarked gore area, and out-of-compliance signage were cited in the report, in addition to the lack of seat belt use by most of the occupants.

Expand Recorder Use

Finally, we continue to urge all large highway vehicles be required to be equipped with recorders that capture a standard set of parameters. Event data recorders are vital investigative tools in every transportation mode—they help us do our job better and faster by providing valuable information after a crash so we can figure out what went wrong and make recommendations that prevent future injuries and deaths. Unfortunately, in crashes involving large trucks or buses, we are often left with limited data from the vehicle about the crash. We learn much more from passenger vehicles in crashes than from trucks and buses because of the standards NHTSA has developed (no such standards exist for trucks or buses). These standards are critical for large-vehicle operators, who can use recorders to train their drivers and increase safety.

The Most Wanted List midpoint mark allows us to reflect as well as plan and set new goals for the upcoming year. Although we have a long way to go to reach zero fatalities on our roadways, the efforts highlighted above, innovative partnerships and strategies, and bold actions to advance our recommendations are what we need to make America’s roadways fatality-free.

 

Dr. Robert Molloy is the Director of the NTSB’s Office of Highway Safety.

This Super Bowl Sunday, Don’t Count on a Hail Mary*

By Member T. Bella Dinh-Zarr, PhD, MPH

Super Bowl Sunday is almost here! Are you rooting for the Patriots or the Eagles? Some of my earliest memories of the Super Bowl are of my three older brothers watching Tony Dorsett and Roger Staubach play (maybe it was all their boyish yelling at the TV that left such a strong impression on me!). Even though their beloved Cowboys haven’t made the playoffs in many years, my brothers still love the Super Bowl.

As for me, I have to admit, one of my favorite parts of Super Bowl weekend is all the food and drinks. If drinking alcohol figures in your Super Bowl plans, just remember to also plan to get home safely afterwards. If you’re with friends or family, help them make a plan, too, so that no one attempts to drive after drinking. Being safe doesn’t mean you BeerKeysLogocan’t have a good time; it simply means making sure you have a safe ride home so you aren’t killed or injured—and so that you don’t kill or injure someone else—in a car crash after the big game. You can call a sober friend, have a designated driver, take public transportation, use a taxi or rideshare service, or simply stay over at your host’s house—you have a lot of options to separate drinking from driving!

If you follow stats, you probably know that Super Bowl LII marks only the 3rd time in history that the two teams are ranked in the top 5 for both offense and defense (one of the others was Super Bowl XIII, when I’m sure my brothers were upset that the Steelers defeated the Cowboys). Unlike football stats, though, we can all be angry about the stats for alcohol-impaired driving deaths. More than 10,000 people die in the United States every year in a crash where someone was drinking and driving—that’s almost 30 deaths every day. Super Bowl Sunday is one of the deadliest days of the year, with a 41 percent increase in deaths, which is more than the increase in deaths on New Year’s Eve.

But these deadly stats don’t have to come true this year. We can do something about it by ChooseOnesimply separating our drinking from our driving. In these days of instant information and constant technology, we can easily call a friend, get a rideshare, find out the public transportation schedule . . . if you have a phone, you have a ride. Choose one: drink or drive. Not both. It’s really that simple, and it may save your life.

Two of my friends are vacationing in Utah and will be watching the game from there. Did you know that Utah just passed a law to lower their illegal per se blood alcohol concentration (BAC) limit from .08 BAC to.05 BAC? Lowering BAC limits is a safety recommendation we made several years ago as part of our Reaching Zero report, and it’s also highlighted as an effective safety measure in the National Academies of Sciences, Engineering, and Medicine’s report, Getting to Zero Alcohol-Impaired Driving Fatalities, an independent study that was published a few weeks ago. Even at .05 BAC, your coordination is compromised, you have difficulty steering, and your visual functions decline (actually, visual abilities decline starting at .02 BAC). All states have at least a .08 BAC law, but the .05 law in Utah will help further reduce the number of drunk drivers at all BAC levels, even high BACs. I’m glad my friends in Utah will be safer this Super Bowl Sunday, but what about people in other states and territories? Impairment has once again made the NTSB’s Most Wanted List, and we continue to work to save those 10,000+ lives that are lost every year across our nation in alcohol-impaired driving crashes.

This year, as we get ready for our Super Bowl celebrations, let’s not forget to separate our drinking from our driving, and remind our friends and family to do the same. Like my brothers, you’re probably making plans to watch the game this Sunday—at home, at a party, in a sports bar . . . or maybe you’re one of the lucky fans who will be watching live in Minneapolis. No matter where you will be for the game, don’t forget to make plans for a safe and sober ride afterwards.

And, regardless of whether you’re rooting for the Patriots or the Eagles, remember that all of us at the NTSB will be rooting for you to get home safely this Super Bowl Sunday.

 

*Did you know? The term ‘hail mary’ gained popularity when quarterback Roger Staubach described his 50-yard touchdown pass to Drew Pearson to beat the Minnesota Vikings in the closing seconds of a 1975 NFC playoff game. A ‘hail mary’ pass is unlikely to be completed, but the successful pass will have game-changing consequences – hence the reference to prayer. You throw a ‘hail mary’ when failure is not an option, but success is vanishingly unlikely.

 

Thank You

SafetyCompassLogoBy Stephanie D. Shaw

We launched Safety Compass in March 2011 to provide you an inside-out view of the investigative and advocacy efforts we’re engaged in and the important safety issues we’re focused on. As we close out 2017, we want to say “thank you” to you, our readers. Thank you for your interest in the work we do and for sharing our safety messages and recommendations for improving transportation safety.

From teens and sleep to drones, autonomous vehicles to our investigative processes, we’ve given you an inside look at the NTSB and highlighted our comprehensive approach to improving transportation safety across all modes and for all people.

To wrap up the year, here’s a list of some of our most popular blogs of 2017:

Last month, we released data revealing that 2,030 more people died in transportation accidents in 2016 than in 2015. Of those fatalities, 95 percent occurred on the nation’s roadways. Many of those deaths were completely preventable! As we approach 2018, we call on each of you to help us reverse the trend of increasing transportation fatalities, especially on our roadways. Continue to read our blog, see the lessons we’ve learned through our investigations, and share the safety recommendations we’ve made to prevent transportation accidents and crashes, deaths, and injuries.

We encourage you to keep up not only with our blogs, but with other NTSB materials. Sign up to be on our Constant Contact list. Follow us on Facebook (@NTSBgov), Instagram (@NTSBgov), LinkedIn (@NTSB), and Twitter (@NTSB). And in case you missed it, we launched a podcast in 2017, too! Check out Behind-the-Scene @NTSB wherever you get your podcasts. If you’d like to suggest a blog topic, e-mail SafetyAdvocacy@ntsb.gov.

As 2017 comes to an end, we again extend our gratitude to you for working with us to improve transportation safety. We wish you safe travels this holiday season and in 2018.

National Impaired Driving Prevention Month

By: Member T. Bella Dinh-Zarr, PhD, MPH

Many Americans are now well into holiday shopping—some may already have finished. Kids have made up their wish lists and excitement is building around what gifts will be arriving. Every year, there seems to be a new trending gift that flies off the shelves. Whether it’s the latest stuffed animal or a remote-controlled toy, the joyous looks on the faces of children who open these gifts are priceless.

One trend that is never joyous, especially around the holidays, that no one wants to be a part of, is the increasing number of impaired driving deaths. This number has been trending upward over the past few years; what’s even sadder is that it could—and should—be zero. Impaired driving fatalities are 100% preventable.

According to NHTSA, over 150 more people died in alcohol-impaired-driving crashes in 2016 than in 2015 (10,320 to 10,497). That was an increase of 1.7%. And, sadly, according to the American Academy of Pediatrics, 1 out of 5 motor vehicle deaths of children involve an alcohol‑impaired driver, most often someone driving the child.

December has been designated National Impaired Driving Prevention Month to draw attention to the problem of drunk and drugged driving and how it can be prevented. Between Thanksgiving and New Year’s Day, Americans attend holiday celebrations of all kinds. Many involve alcohol, and often the amount of alcohol individuals consume isn’t monitored. This can lead to impaired driving if plans for a sober ride home aren’t made in advance.

At the NTSB, we have issued specific recommendations that, if implemented, could save you or someone you know from an impaired driver. Policies such as all-offender ignition interlocks, .05 (or below) per se blood alcohol concentration limits, and high-visibility enforcement campaigns can prevent impaired driving.

These policy actions aim for broad acceptance of a personal choice: Drink or drive, but don’t do both. The same goes for drugs, whether illicit or legal. We can simply decide that driving should be separated from drinking (and the use of other drugs). Impairment and driving should never mix. If you’re planning to drink, plan to have a sober ride home. If you’re driving, take that responsibility seriously; be the sober ride for others and don’t drink at all!  Also if you’ve driven somewhere and then later decide to drink, use public transportation, call a taxi (or a friend), or use a ride app to get home safely. It’s pretty simple: If you have a phone (and often even if you don’t), you have a ride. We each have the power to eliminate impaired driving if we choose to never get behind the wheel when we are impaired.

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If any of this sounds to you like advice from the Grinch, think for a moment about what sober driving would mean, not just for this holiday, but every day. More than 10,000 people die each year because someone drives impaired. Imagine the joy never stolen from family celebrations if all of us made—and kept—plans to have a sober ride home during the holidays. Imagine the pain we could spare families not just during the holidays, but every day. Imagine how many families would remain intact and who wouldn’t have to suffer through the holidays remembering loved ones who were lost at the hands of an impaired driver.

On behalf of the NTSB, please have a safe—and joyful—holiday.

How Employers Can Make Our Roads Safer

By Member T. Bella Dinh-Zarr, PhD, MPH 

“Safety should not be a competitive advantage.”

That’s the message I keep in mind every time I visit groups that represent employers, like the Network of Employers for Transportation Safety (NETS) which focuses on highway safety, or when I meet with the executives at individual companies, who may use many different modes of transportation for their businesses.

The NTSB is a unique federal agency because we are completely independent. Our agency has one simple but noble purpose: to prevent transportation-related deaths and injuries. We are on call 24 hours a day, 365 days a year, to investigate accidents, assist victims’ families, develop factual records, and recommend changes to make transportation safer. Unlike many government agencies, the NTSB has no regulatory authority, and we have no financial incentives to promote our safety recommendations. Our daily decision-making is guided by our values of integrity, transparency, independence, and excellence. We undertake investigations and make recommendations for the sole purpose of preventing future transportation disasters.

CMVSInfographicEmployers are uniquely positioned to meaningfully advance the recommendations that we make at the NTSB.  Over the years, we’ve issued over 14,000 safety recommendations to over 2,300 recipients, many of which are employers or groups that represent them. We know that if employers voluntarily implement our recommendations, our transportation system will be much safer. We’ve issued business-relevant recommendations related to installing recorder technology, developing fatigue management plans, requiring medical fitness, and many more—most of which are on our Most Wanted List (MWL).

Employers have a responsibility to address transportation safety. Nowhere is this more evident than for employers with vehicle fleets.  Many employers develop policies and procedures to keep their staff safe on the roads because they know that motor vehicle crashes are the leading cause of death among workers in the United States. According to the Bureau of Labor Statistics, from 2003–2015, there were more than 23,000 work-related motor vehicle deaths in the United States. The issues on our MWL, if addressed by employers, can help reduce this unfortunate statistic.

One way employers have helped advance safety—and can continue to do so—is by promoting evidence-based interventions like lowering the illegal BAC (blood alcohol concentration) to .05 (g/dL) or lower and implementing primary seat belt laws in the communities they serve. More than 10,000 people die in alcohol-related crashes every year. We’ve recently received attention because of our efforts to end impaired driving and our recommendation to change BAC laws from .08 to .05 BAC or lower. Many peer-reviewed studies have shown that such a law would prevent impaired‑driving crashes. While commercial drivers already are required to comply with a .04 BAC limit, employers can be an important influence in the lives of their employees, as well as in the communities in which they operate, by educating their employees and spreading the word about the effectiveness of a .05 BAC law.

Safety-conscious employers were some of the first and most vocal supporters of preventing distracted driving, long before distraction was a popular topic. Good companies didn’t just talk about distracted driving, they took action—as I’ve seen firsthand—to educate their employees and to change polices to prevent distracted driving.

American companies with large fleets also have been some of the most vocal supporters of the UN Decade of Action for Road Safety. They have worked hard to support international road safety, and have contributed to nontraditional traffic safety efforts, like helmet campaigns and infrastructure programs that improve the road environment, especially around schools.

Employers should also consider bringing vehicles with collision avoidance technology into their company fleets. Systems such as collision warning and automatic emergency braking help keep drivers safe by mitigating or even preventing crashes. Employers could install onboard vehicle monitoring systems and recording devices, such as cameras, to help monitor driving activity and unsafe practices. These technologies require an investment, but that investment will go a long way toward reducing insurance and workers’ compensation costs—and ultimately toward preventing injuries and saving lives.

There are many employers already considering and incorporating these technologies to improve safety; however, the more who join these industry leaders, the more lives will be saved. We can’t overstate the influence employers have, not just on their employees, but on their employees’ families and on their entire communities. Employer support of safety initiatives can be far-reaching. Companies that make safety a priority tend to have employees who make safety a priority. What employees learn about safety—whether related to distracted, impaired, or fatigued driving, or the value of collision avoidance technologies in vehicles—goes home to their families and spreads beyond to the entire community. Employers already have made a positive difference in many areas of traffic safety and employers will be vital to the effort to achieve zero deaths on our roads.

 

For more information on motor vehicle safety at work, visit the National Institute for Occupational Safety and Health website: https://www.cdc.gov/niosh/motorvehicle/resources/crashdata/facts.html

 

 

 

Inspiring Youth Safety Leaders

By Nicholas Worrell, Chief, NTSB Safety Advocacy Division

As an NTSB safety advocate, I serve the American people by promoting safety improvements that will save lives, prevent injuries, and preserve property on the nation’s roadways. I work to end distracted and impaired driving, and I encourage greater use of seat belts and child restraint systems.

One way I get my advocacy message across is by speaking on safety issues. I recently attended the National Black Caucus of State Legislators (NBCSL) Annual Conference in Indianapolis, Indiana. The theme this year was “Racing Towards the Future: Leading in a Time of Change,” though, from a transportation safety perspective, it seems like the future is racing toward us. We are living in an age when everyone, everywhere is connected by technology. In the span of a decade, smartphones have gone from the hot new item to a staple of modern life. But to avoid tragedies, all of us must keep our hands, eyes, and minds on the road—especially our youth, who lack driving experience.

At the conference, I sat on a panel with NBCSL corporate roundtable (CRT) members to address students from Warren Central High School in Indianapolis. Our goal was to educate, empower, and engage the youth on a variety of topics. From my perspective, their race toward the future, and the future’s race toward them, are both givens; the challenge will be for them to lead during changing times. I spoke to them about the significance of making good decisions that would have a positive impact on their lives in years to come. I stressed to them that motor vehicle crashes are the leading cause of death for teenagers, killing more young people every year than suicide, drugs, violence, and alcohol abuse combined. In the last decade, more than 51,000 people between the ages of 15 and 20 died in traffic crashes. That’s nearly 100 people each week! My message, then, was for these youth to act intentionally; to think about consequences up front. Not only are those good leadership habits, but they’re also excellent safe driving strategies.

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Nicholas Worrell with Warren Central High School Principal Rich Shepler and students

I encouraged the audience members to become leaders among their peers. Fatigue, impaired driving, and distracted driving are all factors that can endanger young drivers’ lives. A big part of racing towards the future is bringing about widespread change at a pace that matches other changes coming about—like curbing distracted driving at a clip that keeps up with the developing technology. Keeping up with these changes will take time and commitment, and will require three things: good education and outreach, good laws, and good enforcement.

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Nicholas Worrell joins National Black Caucus of State Legislators corporate roundtable members with Warren Central High School students

The race toward the future must be a race on the Road to Zero Fatalities; however, racing toward the future is more than giving teens a driver’s license or a car. As the CRT members discussed at the conference, today’s teens must meet tomorrow’s challenges with values like responsibility, commitment, passion, initiative, focus, action, persistence, growth, character, goals, gratitude, servitude, and courage, among other things. Racing toward the future will require a great deal of toil, and our youth will benefit from applying the lessons learned before them. Along with my colleagues on the panel, I offered my best advice and my own story to help guide them.

In 2016, we lost more than 37,000 lives on our nation’s roads. As we race toward 2018, what changes will we make to help prevent accidents, injuries, and fatalities? What steps can each of us take to prepare our youth for a brighter future? What stepping stones can we lay for students like those at Warren Central High?

Whether you teach students, mentor younger colleagues, or serve as an example to children, younger family members, or your peers, you, too, can lead during a time of change. The future is racing toward us; the time to prepare the next generation is now.

Williston and Beyond

By Member Christopher A. Hart

A car that is fully controlled by a computer doesn’t get drowsy or distracted. It doesn’t get drunk or impaired by other drugs. If it’s instructed not to go above the speed limit, it won’t. Human error, which is at least partly responsible for 94% of today’s highway crashes, can largely be eliminated if the human driver becomes just another passenger. And with the unacceptable carnage of more than 37,000 deaths in motor vehicle crashes in 2016 alone, we can use all the help we can get. There’s no question that the potential benefits of autonomous vehicles are nothing short of phenomenal.

Getting there, however, will not be as easy as many people think. We recently held a Board meeting to consider the crash in 2016 of a partially automated Tesla into a tractor‑trailer near Williston, Florida. The driver wasn’t paying attention to the road as he should’ve been, and the system allowed the driver to use its “Autopilot” feature in places where it wasn’t designed to operate. The automation system used torque on the steering wheel as a proxy for driver engagement and alerted the driver if too much time passed without detectable movement on the wheel, but the driver treated the alerts as nuisances, dutifully applying torque each time the alert sounded before taking his hands off the wheel again. Although the driver was ultimately responsible for the resulting crash in which he tragically lost his life, the automation allowed him to make unsafe choices.

2015 Tesla Model S 70D car involved in the May 7, 2016, Williston, Florida crash
2015 Tesla Model S 70D car involved in the May 7, 2016, Williston, Florida crash

Flash back to 1914. An airplane flies past reviewing stands full of spectators. The pilot holds his hands high in the air to demonstrate that the airplane is flying itself. The plane makes another pass, then another. According to aviation lore, by the third pass, the pilot, Lawrence Sperry, is walking on the wings. Sperry was showing off his entry in an international aviation safety exhibition: the world’s first primitive autopilot, the gyroscopic stabilizer. It allowed a plane to fly straight and level without pilot input for short periods at a time.

In the years since, aircraft automation has become much more sophisticated. In addition, planes now have systems that sense terrain, they use GPS to know where they are, and they employ a vehicle-to-vehicle technology called a traffic collision avoidance system to help them avoid other planes. Thanks, in large measure to these technologies, aviation has become much safer. Yet, in 2013, nearly 100 years after Sperry’s demonstration, Asiana Flight 214, with more than 300 people on board, approached San Francisco International Airport too low and too slow and crashed into a seawall, killing three passengers.

Fire damage to the fuselage of Asiana flight 214
Fire damage to the fuselage of Asiana Flight 214

The Asiana crash demonstrated automation confusion: the pilot thought that the auto‑throttle was maintaining the speed he selected, but he had inadvertently and unknowingly caused the auto‑throttle to become inactive. It also demonstrated that, due to longstanding overreliance on the automation, the pilot’s manual flying skills had degraded so much that he was uneasy about landing the plane manually on a 2‑mile‑long runway (that’s a long runway!) on a beautiful, clear day.

We’ve investigated automation-related accidents in all modes of transportation. In fact, our investigators see accident after accident involving problems with the interface between the automation and the human operator; we also see far too often that humans are not reliable about passively monitoring automation. And in cases like the Asiana crash, we see that humans get rusty when they don’t use their skills.

The Williston crash showed error types that are not surprising with what’s called level 2 automation. The human driver was responsible for monitoring the environment, but the automation allowed him to shirk this responsibility. This result was foreseeable, given the unfortunate use of the moniker “Autopilot,” which may suggest to the ordinary driver that the car can fully control itself (as compared with pilots, who know that they must still be engaged even when their airplane is operating on autopilot). Thus, one lesson learned is that if the automation should only be usable in certain circumstances, it should be “geo-fenced” so that it will work only in those circumstances instead of depending on the driver to decide appropriately.

What can we expect as our cars move beyond level 2? The aviation experience has demonstrated that as automation increases, so do the challenges. As automation becomes more complicated, drivers are less likely to understand it, and as automation becomes more reliable, drivers will become more complacent, less skillful, and less vigilant to potential failures. As a result, if a failure occurs in a more complicated and reliable system, the likelihood increases that most drivers will not be able to recover successfully from the failure.

In the Asiana investigation, we found that the airline used the available automation as fully and as often as possible. After the crash, we recommended that the airline require more manual flying, both in training and in line operations—not because we’re against technology, but because we see what can happen when pilots lose their skills because they’re not using them.

Then there’s the question of removing the driver altogether. Airliners will have pilots for the foreseeable future because aviation experts have not yet developed a “graceful exit” regarding failure of the automation or what to do if it encounters unanticipated circumstances. Similarly, drivers will be in the picture until the industry develops a graceful exit for their automation failing or encountering unanticipated circumstances . . . and unanticipated circumstances are certainly abundant on our streets and highways.

In every one of our investigations, we study the human, the machine, and the environment. Even across modes, humans and their interactions with automation are a common denominator in an accident’s probable cause. For 50 years, we’ve been finding answers to help the transportation industry save lives, and when our recommendations are put into practice, the industry and the public generally realize safety benefits. We are excited about the opportunities to use the lessons we’ve learned over these many years to help the transportation industry move toward safer vehicles, regardless of who (or what) is operating them.

We’ve come a long way since Lawrence Sperry’s gyroscopic stabilizer, but as accidents like Asiana and Williston show, we’ve still got a way to go before automation can significantly reduce fatalities on our streets and highways. We look forward to continuing to work with vehicle manufacturers to help them develop safer and more reliable automated transportation.