All posts by Marianne

Will NHTSA & NTSB Address Side Underride Factor In Latest Tesla Crash Investigation?

I have again requested that NHTSA and NTSB address the side underride factor in their investigation of yet another Tesla side underride crash.

The U.S. auto safety agency said on Monday it is investigating a crash in Detroit on Thursday involving a Tesla that became wedged underneath a tractor-trailer and left a passenger in critical condition. U.S. safety agency probes ‘violent’ Tesla crash in Detroit

After the investigation of Joshua Brown’s widely-publicized side underride death in May 2016, I asked NHTSA to provide me with their Fatality Analysis Reporting System (FARS) report on his crash. What I discovered was that his crash was coded as “No Underride or Override Noted.” Joshua Brown/Tesla Side Underride Crash Coded as “No Underride” in FARS Data

It has been confirmed by the GAO that underride deaths are undercounted. We all know that ghastly underride deaths happen way too often. Will we seriously allow the lack of an accurate count to stop us from using proven engineering solutions to make sure that there are no more senseless Deaths By Underride?!

In Memory of Kayla Marie Troutman (March 22, 2021)

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.

According to Fisher, Kayla Marie Troutman, 32, of Lexington, was traveling east when her vehicle crossed the center line and collided head-on with a tractor trailer. She was wearing a seat belt when the collision occurred. Troutman was pronounced dead on-scene due to her injuries. Lexington woman killed in head-on tractor trailer collision, coroner identifies

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 —frontside, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

Kayla Marie Troutman, 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.)

Support improving Underride Protection on trailers: Contact your legislators with this User-Friendly TAKE ACTION online tool.

How You Can Help

Please sign this petition: Congress, Act Now To End Deadly Truck Underrides.

Note: 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 I think that underride should be investigated as a potential factor in truck crash injuries and deaths.

In Memory of Tanya Bryson (March 8, 2021)

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.

A South Carolina highway had to be shut down for hours Monday afternoon after officials said a car and a dump truck crashed head-on before catching fire. . .

A four-door sedan drove into the oncoming lane that the dump truck was in and hit it head-on, troopers said.

The driver of that car, 44-year-old Tanya Bryson of Rock Hill, died at the scene. Car, dump truck catch fire after deadly head-on collision in South Carolina

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 —frontside, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

Tanya Bryson, 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.)

Support improving Underride Protection on trailers: Contact your legislators with this User-Friendly TAKE ACTION online tool.

How You Can Help

Please sign this petition: Congress, Act Now To End Deadly Truck Underrides.

Note: 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 I think that underride should be investigated as a potential factor in truck crash injuries and deaths.

In Memory of Cedrick Wa Muboyayi Muboyayi (March 14, 2021)

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.

A southbound car driven by 26-year-old Cedrick Wa Muboyayi Muboyayi, of Grove City, Ohio, crossed the center line and hit a northbound tractor-trailer. The report says Muboyayi Muboyayi was pronounced dead at the scene. Ohio Man Killed in Crash with Tractor-Trailer in Poweshiek County

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 —frontside, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

Cedrick Wa Muboyayi Muboyayi, 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.)

Support improving Underride Protection on trailers: Contact your legislators with this User-Friendly TAKE ACTION online tool.

How You Can Help

Please sign this petition: Congress, Act Now To End Deadly Truck Underrides.

Note: 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 I think that underride should be investigated as a potential factor in truck crash injuries and deaths.

In Memory of Jaroy, Elisia, & A.J. Stuckey (March 14, 2021)

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.

Dr. Jaroy and Elisia Stuckey and their son A.J. have been identified as the victims. Dr. Stuckey was the principal of Dublin High School and an alumnus of Georgia Southern University. . .

The Georgia State Patrol said a semi-truck towing a tanker rear-ended the Stuckeys’ car, which crashed into another tractor-trailer. Another car was hit by the second tractor-trailer, and the tanker caught fire. High school principal, family killed in crash on I-16 in Bulloch County

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 —frontside, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

Jaroy, Elisia, & A.J. Stuckey, Precious Ones 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.)

Support improving Underride Protection on trailers: Contact your legislators with this User-Friendly TAKE ACTION online tool.

How You Can Help

Please sign this petition: Congress, Act Now To End Deadly Truck Underrides.

Note: 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 I think that underride should be investigated as a potential factor in truck crash injuries and deaths.

In Memory of Valdmar Brown (March 10, 2021)

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.

A Marion woman died Wednesday afternoon after her car rear-ended a tractor-trailer in Crittenden County, troopers said.

Valdmar Brown, 32, was going west on Interstate 40 when the crash happened around 3:20 p.m. according to a preliminary report from state police. Troopers: Marion woman dies after car rear-ends tractor-trailer

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 —frontside, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

Valdmar Brown, Precious Ones 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.)

Support improving Underride Protection on trailers: Contact your legislators with this User-Friendly TAKE ACTION online tool.

How You Can Help

Please sign this petition: Congress, Act Now To End Deadly Truck Underrides.

Note: 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 I think that underride should be investigated as a potential factor in truck crash injuries and deaths.

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?

So, who could oppose the idea? The American Trucking Associations. Dan Horvath, vice president for safety policy, told me that the guards would be an expensive burden that would divert investment from better safety improvements and possibly cause trucks to get hung up at railroad crossings. Car Collisions With Big Rigs Don’t Have To Be So Deadly

When someone voices a concern, I immediately investigate the truth of the matter. On this issue, I received information, in 2019, from someone who had looked into this potential problem extensively. This is what he told me:

It may be a deeper dive into the weeds than you care to make, but attached is a compilation of all railroad grade crossing accidents compiled by the Federal Railroad Administration for the past 5 years.

2014-2018 RR Crossing Data (2)

. . . I see, in the last five years, for the population of trailers we currently have including the  lowboys, car haulers, cattle haulers, beverage trailers, etc there have been ZERO fatalities coded as truck-trailer stuck on track.  

Even if one were to assume a side guard at 18 inches high would create more hang-ups and accidents – and the standards on grade crossings say they won’t – it is just not a statistically frequent fatal or injurious event in comparison to side underrides. Maybe this is why the NTSB, the one responsible for investigating significant rail transport accidents, still recommended side guards for trailers.

Here is a federal database of railroad crossings. How could a trucking company and their drivers use this information to plan their route to avoid potentially hazardous hang-ups? Highway/Rail Crossing Database Files

This 2002 West Virginia University provides useful information for this discussion. Low-Clearance Vehicles at Rail-Highway Grade Crossings: An Overview of the Problem and Potential Solutions

“It is interesting to note that ground clearances as low as 2 in. were identified. Although not included in the data base, it was reported to the researchers that some low-boy trailers operate with as few as 3 in. of ground clearance for a 47-ft wheelbase.

. . . a truck with a wheelbase of 30 ft and 6 in. of ground clearance will still experience problems; however, the magnitude of the problem is not as severe”

Two things are interesting about that: (1) the CMVs with that very low ground clearance would not need a side guard and (2) side guards do not go so low as the vehicles mentioned, which are the ones with the severe hang-up problems.

More thoughts on that research: A 2002 Study by the West Virginia University showed that trailers and trucks must be much lower to the ground than an underride guard to hang up on regulation railroad crossings and driveway and dock slopes.  One need look no further than how low semi-tractors are to the ground, or low-boy trailers. or car hauling trailers, to dispel the notion an underride guard at 16 to 18 inches from the ground cannot operate safely over the road. Perry Ponder

Here are some suggestions for truck drivers:

P L A N N I N G A S A F E R O U T E When possible in planning your route, select a route that contains the fewest highway-rail grade crossings. When it is necessary to cross tracks, select the safest crossings—those that offer the best sight distance (no obstructions to your clear line of vision down the tracks). Select crossings that offer you enough containment or storage area for you to stop at a stop sign or stoplight directly across the tracks. Allow enough space for your truck to fit on the other side without overhang onto the tracks. Be especially careful at passive crossings (those without gates, flashing lights, bells). At these crossings it will be up to you to judge if a train is coming without the assistance of electronic equipment.

If your truck does gets stuck on a crossing, you need to take two actions: 1. Get out of your truck IMMEDIATELY. The quicker you act, the more likely you’ll be able to alert the railroad to avert a tragedy. 2. The Emergency Notification Sign you noted on your review of the crossing contains a phone number to the railroad. Call it. Explain your location, including the DOT number listed on the sign. If there is no sign, call the local authorities or 911. RailroadCrossingSafetyforCommercialMotorVehicles

And here’s some Low Ground Clearance Signage. Let’s not act like problems aren’t there to be solved! Engineers love to solve problems!

Oh, by the way, check out the feedback from four trucking companies who have pioneered the use of side guards on their trucks. Have they had problems getting hung-up on railroad tracks?

Transport Companies Provide Feedback on Side Guard Operational Issues

I asked these companies to let me know how they deal with the railroad crossing problem. Late last night, I received a reply:

“If you can cross a railroad with any modern aerodynamic truck with side fairings and rubber skirts, you can cross it with a truck with side underride protection! I never had a problem!
 
You plan your route with trucking GPS and drive with common sense, and there is no problem!
 
Car haulers are low and have railroad crossing problems; underride protection is not a problem! It does not reduce ground clearance more than frequently used spare tire carriers and toolboxes, pallet storage etc.
 
Livestock and moving company trailers, step deck trailers are way lower than underride protection.” Ferdinand Heres, Heres Transport
 

In the end: What is worse than Death By Underride?

UPDATE, May 21, 2021: Don’t blame side guards when trailers get hung up.

Tractor-trailer stuck on railroad tracks along Route 2

UPDATE, March 16, 2022: “They say that tractor-trailers should not cross there because they have the possibility of getting stuck.” In other words, in general, tractor-trailers should avoid such crossings. Don’t use this as an excuse to stand in the way of a side guard mandate. Side guards save lives.

Tractor-trailer stuck at railroad crossing in Dunbar

In Memory of Angela Guarin (March 9, 2021)

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.

The Fremont Tribune reports that the crash happened Tuesday morning when a sport utility vehicle rear-ended the dump truck as it was stopped on U.S. Highway 77 waiting to turn left.

The Nebraska State Patrol says the driver of the SUV, 48-year-old Angela Guarin, died in the crash. Fremont woman killed in crash involving dump truck

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 —frontside, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

Angela Guarin, 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.)

Support improving Underride Protection on trailers: Contact your legislators with this User-Friendly TAKE ACTION online tool.

How You Can Help

Please sign this petition: Congress, Act Now To End Deadly Truck Underrides.

Note: 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 I think that underride should be investigated as a potential factor in truck crash injuries and deaths.


Truck Underride Victims & Families Host News Conference for STOP Underrides Act Introduction

On Monday, March 8, truck crash victims’ families hosted a news conference to discuss their stories and the recent introduction of the STOP Underrides Act of 2021 — on March 4, 2021 in the Senate and March 8 in the House.

If you missed this important event, here are some useful underride links & resources:

Video recording of the News Conference:

It is a well-known fact that underride crashes (and, therefore, underride deaths and injuries) are undercounted. Investigating officers & reporters can help to improve reporting on underride crashes and deaths. Here are some tips, which we’d like you to consider: Truck Crash Investigation Underride Evaluation Checklist (2021)

We 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. This is what they told us:

A Timeline of Underride:

Underride Victim Photo Memorial Slideshow – the tip of the iceberg:

In Memory of Robert Sponaugle (March 3, 2021)

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.

. . . a sedan struck the side of a tractor-trailer, which resulted in the sedan driver sustaining injuries and later passing away. . .

The department reported that 65-year-old Robert L. Sponaugle, of Glen Burnie, Md., was driving a 2008 Toyota Yaris when his vehicle struck a tractor-trailer driven by Charles Gaither, Jr., of Hanover. East Hempfield Twp Police identify victim in Route 30 fatal crash

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 —frontside, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

Robert Sponaugle, 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.)

Support improving Underride Protection on trailers: Contact your legislators with this User-Friendly TAKE ACTION online tool.

How You Can Help

Please sign this petition: Congress, Act Now To End Deadly Truck Underrides.

Note: 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 I think that underride should be investigated as a potential factor in truck crash injuries and deaths.