Add your voice to the STOP Underrides National Town Hall. On April 15, Town Hall participants heard from STOP Underrides Bill sponsors and a few families who have lost loved ones due to the preventable underride problem. Then we learned how to take simple action steps during the event to encourage our U.S. legislators to support the Stop Underrides Act.
Now we want to continue that Wave of Action. Follow these simple STOP Underrides Action Steps to send a strong message to your Members of Congress. You’ll be shown step by step how to write a simple script. Then use that script to send an email, record a video selfie, make a phone call, and post on social media.
Inspire others to do the same by using one of the sample social media posts included in the instructions. Use this virtual “sticker” on social media:
It has a QR code with a link to the email action alert — giving your viewers a simple way to add their voice and keep the Waves of Action going.
Have you lost someone close to you, or in your community, because of a truck crash? Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks.
It can happen to anyone — even if their car has a 5-Star Safety Rating — like it has happened to tens of thousands of Americans including my daughters, AnnaLeah (17) and Mary (13). It can happen to you.
ALL HANDS ON DECK! Join a STOP Underrides National Town Hall via Zoom on April 15 | 🕖 8 – 9 pm ET |RSVPHERE
You will be able to tell your U.S. Senators and Representative that you want them to pass the STOP Underrides Act of 2026. This bill will make strong underride guards mandatory so that truck crashes become more SURVIVABLE.
Your voice at this unique advocacy gathering can help us get this long-overdue legislation across the finish line. Please register below. We’d love to have you join TEAM Underride in this way.
Ask your Members of Congress to participate, and multiply your voice by telling others about this opportunity.
Note: If you are unable to attend, please contact me at marianne@annaleahmary.com so we can help you to share your story with your Members of Congress.
STOP Underrides National Zoom Town Hall SAVE THE DATE – FRONT & BACK
I was glad to see that John Gallagher (FreightWaves) highlighted an aspect of the STOP Underrides 2.0 Bill which should be of interest to industry and Republicans:
In an effort to address long-standing complaints from the trucking industry that underride protection equipment adds weight and increases fuel costs, the new bill includes a performance standard whereby any new side underride guards must “contribute to fuel efficiency through the integration of aerodynamic design or components furthering fuel efficiency.” The provision is aimed at offsetting the operational costs of the guards by essentially requiring them to function as side skirts. Legislation would require crash protection on new trucks
However, in his description of the new bill, he also mentions that prior versions included a retrofit requirement which is not in the 2026 legislation. While it is true that previous versions of the bill, in 2017 and 2019, contained a retrofit requirement, we decided to remove that provision in the 2021 re-introduction of the STOP Underrides Bill. We did that not because we no longer thought it beneficial for the saving of lives but in order to garner broader Republican support.
Thankfully, we already had the support of Senator Marco Rubio, who had co-led underride legislation with Senator Kirsten Gillibrand since it was first introduced in 2017:
“Hundreds of individuals across the nation are lost to underride collisions every year, with Florida unfortunately ranking among the top states for reported fatalities,” Rubio said. “As a parent with kids of driving age, I look forward to working in a bipartisan fashion to advance efforts to make our roads safer.” Senators Kirsten Gillibrand and Marco Rubio introduce bill to prevent truck underride deaths
In fact, we had been in discussions with Senator Richard Burr, our Republican Senator in North Carolina since August 2013 just a few months after our crash. We continued discussions with his staff over the years and in 2021 knew that he would become an original cosponsor if we removed the retrofit requirement.
You see, he wasn’t shortsighted; he saw the big picture. He knew that strong underride regulations would be a Win/Win situation—good for victims of truck crashes because they would have a better chance of surviving but also good for business when all relevant factors are taken into account.
Although Senator Burr has retired and can no longer support this legislation, I hope that his former colleagues will see the light and follow in his footsteps. To that end, I have held ongoing conversations with the Offices of our current North Carolina Senators, Thom Tillis and Ted Budd — keeping them updated on the underride crash testing which we have conducted in Raleigh.
Likewise, I’ve had conversations with Republican staff of the House T&I Committee and Senate Commerce Committee, as well as many other Republican legislators, including Senator John Thune (former Chair of the Commerce Committee), Senator Ted Cruz (current Chair of the Commerce Committee), and Senator Todd Young, who represents Indiana where three trailer manufacturers are headquartered. One of them, Wabash Trailers, proudly announced their improved rear underride guard in 2016 and showcased their side guard prototype at a trucking conference in 2017 — although they are, regrettably, not installing them on their trailers at this time.
Since we no longer have Senators Rubio and Burr to champion underride protection, I would be beyond delighted if these sitting Senators would choose to lead the way in strong Republican support of this common-sense legislation.
Today, U.S. Senators Kirsten Gillibrand (D-NY) and Ben Ray Luján (D-NM) and U.S. Representatives Steve Cohen (D-TN-9), Mark DeSaulnier (D-CA-10), and Deborah Ross (D-NC-2) introduced legislation to help prevent deadly truck underride crashes.
Legislation was introduced in 2017, 2019, and 2021. Underride provisions were included in the 2021 Bipartisan Infrastructure Bill. The 2026 Stop Underrides Act 2.0 would expand on current restrictions by instructing rulemaking to require side underride guards on new trucks, improving data collection, and directing additional research on underride crashes. Specifically, this bill would:
Require the National Highway Traffic Safety Administration (NHTSA) to finalize rulemaking requiring side underride guards on commercial trucks.
Restart the Department of Transportation’s (DOT) Advisory Committee on Underride Protection, to provide recommendations for how to reduce underride crashes and severe injuries and fatalities caused by underrides.
Require the DOT to publish a website making underrides research accessible to researchers, industry, and advocates.
Instruct the National Academies of Sciences, Engineering, and Medicine to conduct a study on the prevalence of underride incidents, including those involving the fronts of large trucks.
Instruct NHTSA to create free, on-demand web-based training for state and local law enforcement to better identify and document underride crashes.
Instruct the Government Accountability Office to conduct a study of the implementation of NHTSA’s 2022 rear underride rule and provide suggestions to better improve the rule.
Instruct NHTSA to review its Fatality Analysis Reporting System (FARS) and correct crashes in the database that should have been classified as an underride but were not — including Vulnerable Road Users, i.e., pedestrians, bicyclists, and motorcyclists.
The House bill is H.R. 7354. Its companion bill in the Senate is S. 3775. You can read the full bill text here.
“Truck underride guards are one of the best and easiest solutions for protecting passengers during collisions with large trucks,” said Senator Gillibrand. “The Stop Underrides Act 2.0 is commonsense legislation that will protect passengers and make our roads safer. I look forward to working across the aisle to get this passed.”
“I’m proud to join my colleagues in introducing life-saving legislation to make our roads safer,” said Senator Luján.“The Stop Underrides Act will help prevent deadly underride crashes and protect families from tragic, preventable loss. I’m grateful for Senator Gillibrand’s leadership on this important issue, and I look forward to working with my colleagues to get this bill signed into law.”
“The Stop Underrides Act 2.0 would help prevent these terrible and too-often fatal truck-trailer accidents by ensuring that cars can no longer slide underneath trucks,” said Representative Cohen. “In introducing this legislation, I’m reminded of my constituents Randy and Laurie Higginbotham who lost their son in an underride crash in Memphis in 2014. The Stop Underrides Act 2.0 builds on important progress made in the Infrastructure Investment and Jobs Act and will save lives by helping to end these fatal crashes.”
“With truck underride collisions claiming the lives of at least 300 people per year, the time to act on reforms is now. Small changes will make a big difference, and we cannot leave any room for error,”said Congressman DeSaulnier. “I am proud to join my colleagues in advancing this bill to put an end to these avoidable tragedies.”
“Requiring trucks to have underride guards is a simple way to prevent hundreds of deaths on our roads,” said Congresswoman Ross.“These guards are a proven, effective safety measure that will reduce underride crashes as well as severe injuries and fatalities caused by underrides. I have heard directly from families in my district about the lives this improvement could save. I’m proud to introduce legislation that will prevent vehicle fatalities and make our roads safer for drivers in North Carolina and across the country.”
We had the opportunity to discuss underride with our representative, Congresswoman Ross, during a 2025 Town Hall. We appreciate her responsiveness and her support of this important legislation.
In the Senate, the Stop Underrides Act 2.0 is cosponsored by Senators Richard Blumenthal (D-CT), Chris Van Hollen (D-MD), Tammy Duckworth (D-IL), and Elizabeth Warren (D-MA). This bill is supported by the Advocates for Highway and Auto Safety, America Walks, AnnaLeah & Mary for Truck Safety, Cascade Bicycle Club, Casey Feldman Foundation, Center for Auto Safety, EndDistractedDriving.org, Families for Safe Streets, International Brotherhood of Teamsters, League of American Bicyclists, Institute for Safer Trucking, Kids and Car Safety, Ride Illinois, Ride of Silence, Road Safe America, Sylvia Bingham Fund, Safe Routes Partnership, Stop Underrides, and Truck Safety Coalition.
This week, I had a conversation with Ralph Nader about the truck underride problem. Now, he has been an important activist in the automobile safety space for decades and his advocacy has saved many lives. Unfortunately, underride is a problem that existed when he began his consumer advocacy efforts yet people — still to this day — continue to die from that preventable problem. Why is that? Well, it’s the trucks (not the cars).
What we talked about, but which apparently got edited out of the final version, was the full extent of the problem. Ralph asked me a couple of times how many people died every year from underride. I started out by describing how vastly undercounted underrides are — both due to the fact that an underride checkbox doesn’t exist on the state crash report forms for most states and also because NHTSA excludes many categories of victims from their regulatory cost benefit analysis. Since he wanted a number, I said that there were at least 600 underride deaths a year. But the actual number is higher, especially when you count the deaths of Vulnerable Road Users — pedestrians, bicyclists, and motorcyclists — all of whom face lethal underride dangers, too.
Out of 40,000 annual traffic deaths, 4.5% are caused by underride. Underrides are lethal for car passengers because the bottom edge of trailers stands above all of the passive safety features incorporated into passenger vehicles, e.g., crush zones, bumpers, airbag sensors, seat belt tensioners.
When cars and large commercial motor vehicles interact, the bottom of the trailer can intrude into the occupant survival space and cause life-threatening injuries such as decapitation and crush injuries. The same risks face bicyclists, motorcyclists, and pedestrians when they get swept under large commercial trucks and get crushed by the rear wheels.
Underride deaths cannot be eliminated by changing driver behavior or even crash avoidance technology. (It’s not the crash that kills; it’s the underride.) They can only be eliminated by the installation of physical guards, known as “impact” or “underride” guards, to the sides and rear of trailers. This is LOW HANGING FRUIT – a problem not as hard to solve as impaired or distracted driving.
Preventing underride deaths at 40 mph is possible. But it will not happen through voluntary action by trailer manufacturers. This is a failure of the marketplace. Government regulation is intended to correct for market failures, and NHTSA has the power to do that.
AnnaLeah & Mary for Truck Safety and Aaron Kiefer have been invited to demonstrate underride crash testing next year at the 2026 Southeast Commercial Motor Vehicle Safety Summit co-hosted by the FMCSA in Raleigh on August 11. I invited NHTSA Administrator Morrison and FMCSA Administrator Barrs to take advantage of this opportunity to witness firsthand the life & death difference of underride protection.
Preventing underride deaths is not a Republican issue. It’s not a Democratic issue. Neither Party has made a difference in the underride policy space. I asked Administrator Morrison to make that part of his public service legacy.
And that is why, knowing of Ralph’s promotion of civic advocacy, I mailed a proposal to him a month or so ago. You see, we share a common dream for the mobilization of a network of citizen advocacy groups — one in each of the 435 Congressional districts. This outside-the-box strategy has the potential to build bridges between polarized citizens, enabling them to find common ground thereby uniting and amplifying their voices — empowering We The People to bring about needed change in our country.
The Department of Transportation (DOT) engaged Elemance LLC in 2022 to evaluate three current designs of rear impact guards. Unfortunately, Elemance conducted Finite Element analysis of two obsolete rear underride guards that were not current designs at the time of the contract. In fact, both of those designs had been proven a decade earlier to be crash-deficient. The two manufacturers — Great Dane and Wabash — have developed designs with safer, stronger rear-guard designs. Elemance compounded that error by employing an erroneous definition of Passenger Compartment Intrusion. Elemance’s research findings, Heavy-Truck Rear-Impact-Guard Finite Element Simulation and Analysis, are flawed and backwards-looking rather than helpful to the Department and Congress in evaluating current and future rear underride guard performance and regulatory standards.
Please find attached a detailed critique by engineers who are well-acquainted with the underride problem and solutions. This is what the engineers concluded about the NHTSA-contracted research:
In view of the defects in the Elemance report, afollow up study should be commissioned to evaluate examples of current state of the art rear impact guards that have been in servicesince 2016 and 2017 respectively. The study should utilize the correct definition of PCI andmore accurately assess injury risk.
The Department should act promptly to address the flaws in this federal research in order to fulfill its mission to reduce roadway injuries and deaths.
Jerry and Marianne Karth
Note: This critique was submitted as a Public Comment on September 3, 2025, to the U.S. Department of Transportation in response to their Request for Comments on priorities for the 2026 Surface Transportation Reauthorization.
This video created by the Insurance Institute for Highway Safety twelve years ago explains their Rear Impact Guard crash testing research and how the federal standard is failing to protect road users:
This video is a compilation of IIHS Rear Impact Guard crash tests with old and new guard designs for many of the major trailer manufacturers:
This video demonstrates the night & day difference between old and new designs by one manufacturer:
This post provides basic underride information, as well as a running list of recent relevant posts.
Underride Crash Memorials These are posts in memory of a few of the thousands of underride victims. The tip of the iceberg of senseless, preventable deaths. I will slowly be adding more.
What will it take to get UNDERRIDE on DOT Regulatory Agenda? We’ve been waiting 52+ years for DOT to move forward with side guards on large trucks — not to mention improving rear guard regulations and adding front underride protection. After numerous petitions, comprehensive underride rulemaking still has not made it the onto the DOT Unified Regulatory Agenda.
Collaborative Discussion of Side Guard Challenges on Specialty TrucksI was very pleased with the collaborative discussion which took place via Zoom on Monday, March 29, 2021, regarding the challenges of adding side guard safety technology to specialty trucks. Participants included primarily engineers and small companies who have been working on researching, designing, and/or marketing solutions to the underride problem. The meeting was also quietly observed by families of underride victims and administrative officials from the Federal Motor Carrier Safety Administration (FMCSA).
The March Madness of Competing Traffic Safety InterestsWhat is it like to compete for the attention of government leaders in order to get traction on the traffic safety problem which took your loved one’s life? Envision a press conference on a hot topic where a cacophony of reporters can be heard shouting out — vying for the opportunity to have their question be the one that gets answered.
Time for a National Traffic Safety OmbudsmanAlmost five years ago, after delivering a Vision Zero Petition to leaders in Washington, D.C., I realized that we need something more than a White House Vision Zero Task Force and a National Vision Zero Goal. We need a National Traffic Safety Ombudsman to be at the helm of a nationwide network of community traffic safety advocates. Someone who will have a place at the federal table — with the authority to take ongoing action on behalf of vulnerable victims of vehicle violence.
Engineers, Trucking Industry, & Victim Advocates Collaborate at Side Guard Task Force On a Friday afternoon — February 26, 2021 — over 50 people met via Zoom to discuss comprehensive underride protection. The purpose of the meeting was to report on progress which has been made by several subcommittees since an earlier meeting in 2020 — including Industry Engagement, Research, and Engineering Subcommittees.
Should we be concerned about side guards getting hung up on railroad tracks?I keep hearing members of the trucking industry bring up the possibility of side guards on trailers getting hung-up on railroad tracks. They point to it as a reason to not require side guards on all new trucks. Is that a valid concern? And where is their documentation?
Transport Companies Provide Feedback on Side Guard Operational IssuesWe know that the trucking industry has expressed concern about potential operational issues which could occur when side guards are installed on large trucks. In order to address those concerns, we asked several trucking companies to give us feedback about their experience after installing side guards on their tractor-trailers.
Consensus Side Guard StandardOn April 17, 2020, over 40 people participated in a virtual meeting of a volunteer Underride Protection Committee’s “Side Guard Task Force.” This included two engineers from trailer manufacturers. As a follow-up, several subcommittees began to hold virtual meetings, including an Underride Engineering Subcommittee.
FMCSA Proposed Rule For Inspection of Rear Underride Guards A red letter day: The Federal Motor Carrier Safety Administration (FMCSA) at long last has proposed a rule to add rear underride guards to Appendix G. What does that mean? It means that rear underride guards will be required to be in good condition in order to pass an annual vehicle inspection. Once the rule is actually issued.
Retrofit Solutions for Rear Impact Guards to Prevent Deadly UnderrideIt is to their credit that nine U.S. trailer manufacturers have improved their rear underride guard design to meet the IIHS TOUGHGuard standard and seven of them are putting it on all new trailers as Standard. What that means is that they have surpassed the current federal standard and have been crash tested to show that they are more likely to prevent underride and catastrophic Passenger Compartment Intrusion (PCI) — thereby more likely to save lives when passenger vehicles rear end tractor-trailers.
Save Lives by Lighting up Tractor-Trailers & Tanker TrucksTruck drivers can play an important role in making sure that the trailers which they haul are as visible as possible to other drivers on the road — especially at nighttime. On October 15, 2018, Leslie and Sophie Rosenberg lost their lives when they collided with the side of a tanker late at night.
Truck Driver Mistakes Don’t Excuse Industry & Government Negligence To Solve Underride ProblemThanksgiving Eve, another apparent underride victim lost her life: Though the truck driver may have made a mistake, not all the blame rests with him for a crash which might have had a different outcome with effective underride protection. Carriers, trailer manufacturers, DOT, & Congress can make these kinds of truck crashes more survivable.
A fully-guarded trailer hits the road – ready to STOP underride! Engineering ingenuity and a lot of hard work went into the research, development, and installation of this fully-guarded trailer system. This week, a small carrier in North Carolina became part of our pilot program. We are thankful that they have agreed to provide us feedback on this #SaferTruck as they drive it on the road to carry out their transport business.
On August 19, we hosted another Underride Staff Briefing — this time via Zoom. We are providing Congressional Offices with the PowerPoint pdf from that presentation, including comments from engineers with expertise in underride as well as underride families: Underride Briefing PowerPoint pdf (inc. links to resources & video)
Underride Crash Memorials These are posts in memory of a few of the thousands of underride victims. The tip of the iceberg of senseless, preventable deaths. I will slowly be adding more.
RAMCUP.Roya, AnnaLeah & Mary Comprehensive Underride Protection.They paid the price:
NOTE: The summer months involved a lot of traveling to help family and I was not able to continue reviewing truck crash notifications and writing underride memorial posts. As a result, you will observe an apparent cessation in these tragedies — not because they aren’t happening but only because I wasn’t monitoring and recording them. 10/1/24 mwk
Because the bottom of a truck is higher than the bumper of passenger vehicles, when there is a collision the smaller vehicle easily slides under the truck and the first point of impact is the windshield — resulting in underride and passenger compartment intrusion (PCI). Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes — front, side, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.
This geometric mismatch has been misunderstood for decades. Reports on truck crashes generally focus on the cause of the crash and not what caused the deaths. So underride is undercounted. I know this from firsthand experience having been in a truck crash (but not in the part of the car which went under the truck) and lost two daughters because of underride (one of whom was not reported as such in DOT data).
In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have been writing memorial posts on what appear to me to be underride crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
This is not an exhaustive list — merely the tip of the iceberg. But I hope that it serves to demonstrate the ongoing nature of a preventable public safety problem.
You can find these Underride Crash Memorial posts here.
The violent nature of underride injuries are documented here in two side underride crashes — a 2016 fatal truck crash and a 2020 near-fatal truck crash. The severity of the injuries which are a direct consequence of preventable intrusion into the occupant survival space is rarely discussed. The regulatory analysis primarily addresses the problem as a transportation issue.
This is disturbing because the reality of the horrific and violent nature of these injuries is muted and minimized by simply calling it a “safety” issue while ignoring the actual known unreasonable risk of endangerment to human life.
Safety refers to the state of being free from harm, danger, or risk. It encompasses various conditions and practices designed to protect individuals from injury or accidents. (US Legal Definition)
NHTSA washes its hands of these preventable injuries by putting out PSAs about driving safely but neglecting to issue motor vehicle safety standards for a dangerous vehicle design which they refuse to call a safety defect. But what are these injuries which have been documented for decades?
In the Iowa Supreme Court brief, the estimated impact speed of the passenger vehicle was 32.7 mph from McQuillen’s expert and a minimum of 40 mph from West Side’s expert. Importantly, both speeds that surfaced in the appellate briefing are in the range where side underride guards are generally understood to provide protection.
Compare the above 2020 near-fatal side underride case to the NTSB investigation, #HWY16F018 (found here), of a 2016 Florida fatal side underride, NTSB investigated a 2016 side underride (which NHTSA inaccurately coded in FARS as No Underride Noted, but has now been corrected) . The victim iin this crash was Joshua Brown. See the similarities in the injuries incurred.
NTSB published an Injury Factual Report for that crash investigation (as documented by a NTSB biomechanical engineer and found here):
Although 49 Code of Federal Regulations (CFR) Part 830 pertains to the reporting of aircraft accidents and incidents to the National Transportation Safety Board (NTSB), section 830.2 defines fatal injury as any injury that results in death within 30 days of the accident and serious injury as any injury that (1) requires hospitalization for more than 48 hours, commencing within 7 days from the date of injury; (2) results in a fracture of any bone (except simple fractures of fingers, toes, or nose); (3) causes severe hemorrhages, nerve, or tendon damage; (4) involves any internal organ; or (5) involves second- or third-degree burns, or any burn affecting more than 5 percent of the body surface.
It should be noted that another biomechanical engineer, Mohammad Atarod, identified similar injuries after analyzing the injury data from crash test dummies used in Rear Impact Guard crash testing by the Insurance Institute for Highway Safety. He shared this information, Biomechanics of Passenger Vehicle Underride, in a presentation to the Advisory Committee on Underride Protection in 2024.
Additionally, a SAE 2020 side underride guard research paper by Garrett Mattos, et al, documents injury data with and without side guards in simulated crash testing, Protecting Passenger Vehicles from Side Underride with Heavy Trucks (found online here) with results similar to the crash testing of the AngelWing side underride guard at 40 mph by the Insurance Institute for Highway Safety at the Second Underride Roundtable on August 29, 2017.
In stark contrast, in its 2023 Advanced Notice of Proposed Rulemaking for Side Impact Guards, NHTSA used the word injury 7 times and injuries 34 times:
I see no description, in NHTSA’s lengthy regulatory analysis, of actual specific categories of injuries incurred in underride crashes, with lethal passenger compartment intrusion, beyond the generic use of the word “injury” or “serious injuries.” Nor is there any talk of “injury prevention.”
Why are we ignoring the severity of injuries which could be prevented by available engineering solutions? I survived a horrific truck crash with minor injuries because I did not experience intrusion of my survival space. I know that preventing underride is a matter of life or death. Enough of this spilled blood. Let’s make truck crashes more SURVIVABLE — because we can.
Thank you, Stoughton Trailers, for leading the way in safety. At no added cost or weight to your customers.
Stoughton Trailers is proud to announce that it has successfully met the Insurance Institute for Highway Safety (IIHS) TOUGHGUARD® requirements at an elevated speed of 40 MPH, surpassing the 35-mph standard IIHS previously set for the van trailer industry.
Upon learning of Stoughton’s decision to make this improved protection available on all of their new trailers, Karth said, “Stoughton’s cooperative efforts to improve the performance of its rear impact guard demonstrates a genuine commitment to safety. Stoughton is to be commended for taking a significant leadership role in design and safety. In my opinion, many lives will be saved as a result of Stoughton’s efforts.”
Thanks to STOUGHTON’s improved Rear Impact Guard, Terry Rivet survived a truck crash in March 2017.
Stoughton Press Conference at TMC 2017 Conference
Speaking at Stoughton’s Press Conference in 2017
Stoughton’s Engineering Innovation won’t bring AnnaLeah & Mary back, but it will save others.
Video from 2016 Crash Test: In this toughest IIHS underride guard test, 30 percent of the front of a midsize car strikes a parked Stoughton trailer at its outermost corner at 35 mph. Underride guards are weakest at the outer edges of a trailer.
Oh, by the way, Stoughton also has a side guard patent. Will they lead the way in fully guarding their trailers from underride and lethal passenger compartment intrusion?
UPDATE March 13, 2026: Hundreds of people die every year when pedestrians, cyclists, motorcyclists, and occupants of passenger vehicles go under trucks. Please consider joining a STOP Underrides National Town Hall via Zoom April 15 | 8 – 9 pm ET |RSVP HERE.
Your voice at this unique advocacy gathering will let your U.S. Senators and Representative know that you want them to pass the STOP Underrides Act of 2026.
Michael David Schuster, 57, was pronounced dead of his injuries after collision on Wednesday, Dec. 31 between pickup and a tractor trailer, said Deputy Kingman Police Chief Joel Freed, confirming Schuster is the brother of Mohave County Sheriff Doug Schuster.
Because the bottom of a truck is higher than the bumper of passenger vehicles, when there is a collision the smaller vehicle easily slides under the truck and the first point of impact is the windshield. Seatbelts, airbags, and car crumple zones do not function as intended in underride crashes —front, side, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.
Michael David Schuster, Precious One Gone Too Soon
See Underride Crash Memorials posted here and at #STOPunderrides Tweets. To add photos or more information on this story or to add other underride crashes to be remembered, send an email to underridemap@gmail.com. Please use this Interactive Underride Crash Map Crash Location Input Form to provide us with accurate information . (Note: the map is currently not online; but we would keep the information for future updating and to aid in underride advocacy efforts.)
Note: In order to raise awareness and preserve the memories of underride victims — precious ones gone too soon — I have periodically written memorial posts on what could potentially be underride crashes; but be aware that this is not a comprehensive, exhaustive record of all such crashes. I am not a crash reconstructionist, and I do not have all the facts on these crashes; but underride should be investigated as a potential factor in truck crash injuries and deaths.
Proving that underride protection can save lives is not enough to convince federal regulators that underride mandates should be issued. The regulatory process requires that a rule be cost effective. There are many factors which should go into a cost benefit analysis equation. Unfortunately, we are aware of a multitude of flaws in this process and that includes excluding certain categories of underride victims:
victims of crashes where the posted speed limit is above 40 mph (not taking into account Delta-V forces in collisions);
victims of crashes which involve multiple vehicles (NHTSA only includes two-vehicle crashes in their regulatory analysis!);
as well as overestimating the weight of guards, not counting the fuel savings of side guards installed in conjunction with side skirts, or ignoring the cost to industry of lawsuits for preventable fatalities.
The Department of Transportation published a report in May 2020, A Literature Review of Lateral Protection Devices on Trucks Intended for Reducing Pedestrian and Cyclist Fatalities. The published report purported to fulfill a $200,000 contract (number SA9PA1) awarded by the Federal Motor Carrier Administration (FMCSA) to the John A. Volpe National Transportation Systems Center. In 2019, Volpe Center researchers turned in a draft of that report, entitled, “Truck Side Guards and Skirts to Reduce Vulnerable Road User Fatalities: Final Report on Net Benefits and Recommendations” (DOT-VNTSC-FMCSA-19-01). The published literature review left out many of the original objectives outlined in the contract between FMCSA and the Volpe Center to study the effectiveness of truck side guards to reduce Vulnerable Road User deaths.
ALMFTS investigated by requesting documents pursuant to the Freedom of Information Act. Internal agency emails reveal that the Department — not the study’s authors — rewrote the Volpe Center Report, in violation of a federal guidance on conducting peer review. The emails document that a NHTSA official made revisions to the original report rather than making recommendations to the study’s authors — as would be done in a genuine peer review.
Here is a subset of those emails — a list of some of the more relevant and revealing ones, which document that revisionism rather than review of a research study took place:
This is a violation of an Office of Management & Budget guidance on peer review — at the peril of Vulnerable Road Users who are at risk of known, unreasonable, and preventable truck underride injuries and death, as well as occupants of passenger vehicles.
When one errs, the right thing to do is to correct the error. The right thing to do here is to correct the information the Department erroneously published. What will the Secretary of Transportation do, at this juncture in history, to protect these souls entrusted to his care?
If only the federal traffic safety agency had fought as hard to get side underride protection on the roads as they did to keep them off the roads, those roads would be a whole lot safer. Although it is only one piece of a larger puzzle, the Volpe National Transportation Systems Center report on truck side guards — before Department officials suppressed its findings — illustrates the cost effectiveness of a technically-proven road safety countermeasure.
