All posts by Marianne

In Memory of Timmy Hensley (December 7, 2020)

Underride Crash Map, , ,

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 driver of the stolen tractor-trailer was reportedly driving erratically and fled from troopers, heading south on the highway with no headlights on.

THP reports the driver of the stolen commercial vehicle ran a red light at the intersection of Highway 36 and Highway 75, then crossed the center line and hit a Saturn SL1 head on. . .

The driver of the Saturn, identified as Timmy Hensley, 60, of Johnson City, was killed in the crash. He had been wearing his seatbelt. THP: Johnson City man killed in crash involving stolen tractor-trailer on Kingsport Highway

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.

Timmy Hensley, 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 underride should be investigated as a potential factor in truck crash injuries and deaths.

In Memory of Terrel Thomas & Brianna Baxter (December 7, 2020)

Underride Crash Map, , ,

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.

Officials identified the driver of the SUV, a male, and his female passenger as 26-year-old Terrel Thomas of Mobile and 21-year-old Brianna Baxter of Summerdale. They both died at the scene.

Preliminary investigation revealed that the tractor trailer was experiencing mechanical issues causing the driver to pull over on the shoulder of the roadway. While the tractor trailer was disabled, the SUV left the roadway and struck the trailer and became lodged under the trailer. Two dead following crash on I-65 South near Airport Boulevard identified

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.

Terrel Thomas & Brianna Baxter, 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 underride should be investigated as a potential factor in truck crash injuries and deaths.

“Chattanoga crash that killed 5 underscores bill to add protective barriers to semi trucks”

Safety Advocacy, Truck Safety, , ,

Related post: Retrofit Solutions for Rear Impact Guards to Prevent Deadly Underride

“Chattanoga crash that killed 5 underscores bill to add protective barriers to semi trucks”

Safety Advocacy, Truck Safety, , ,

Let’s make truck crashes more survivable!

Related post:Retrofit Solutions for Rear Impact Guards to Prevent Deadly Underride

Retrofit Solutions for Rear Impact Guards to Prevent Deadly Underride

Safety Advocacy, Truck Safety, , , , , , ,

It 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.

See the difference between a too weak and a stronger guard:

Read more here: Recognizing good rear underride protection

Unfortunately, that does not help underride victims who crash into older models with too weak rear underride guards. Until the entire fleet has this stronger protection, people will continue to die from an engineering problem that has already been solved.

Note (June 2, 2025): And the weak rear guard, as seen on the 2013 Utility trailer crash test above, is still allowed to be sold under NHTSA’s 2022 revised Rear Impact Guard rule. For more on this travesty, read here: New federal rule on truck underride protection does not go far enough.

Underride Crash Memorials (the tip of the iceberg)

Thankfully, there are retrofit solutions available. This is what I know:

Note: When I called a local truck part company, the person with whom I talked knew nothing about improved rear guard retrofit parts. They were still selling the old model of generic horizontal bumper tubes. In other words, despite the availability of improved guards, many trucking companies are replacing damaged guards with the old model which can’t stop a car in an offset crash.

In Memory of Justin Shoopman (December 1, 2020)

Underride Crash Map, , ,

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.

State police say they responded to a crash between a tractor-trailer and a car near mile marker 28 just before 5:00 a.m. Monday morning.

Troopers say the semi driver lost control and hit a 1998 Toyota driven by 58-year-old Justin Shoopman. Shoopman was pronounced dead at the scene by the Laurel County Coroner’s Office. Man dead after Laurel County crash

Icy roads possible factors in two fatal accidents on I-75 within two hours

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.

Justin Shoopman, 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 underride should be investigated as a potential factor in truck crash injuries and deaths.

In Memory of George Martin (December 1, 2020)

Underride Crash Map, , ,

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.

KSP says 40-year-old Boban Colic, of Phoenix, Arizona, was driving a semi south on I-75 when he lost control, crossed the median, and crashed into a pickup truck, driven by 25-year-old George E. Martin, of Williamsburg, Kentucky.

The coroner pronounced Martin dead on the scene. Man dead after semi loses control on I-75, crashes into pickup 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 — front, side, and rear — leaving passenger vehicle occupants vulnerable to life-threatening injuries.

George Martin, 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 underride should be investigated as a potential factor in truck crash injuries and deaths.

In Memory of Justin Folsome (November 24, 2020)

Underride Crash Map, , , ,

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.

Campos was arrested following a November 24 crash on S.R. 85 near Buckeye, Arizona, that killed Maricopa County Sheriff’s Office detention officer Justin Folsome.

Police say that Campos was driving northbound on S.R. 85 when he failed to slow for traffic stopped at a light, striking vehicles at speeds of 55 m.p.h. His truck hit Folsome’s car first, then pushed the car into two other vehicles.

Folsome died as a result of the crash. Truck driver in crash that killed Arizona sheriff’s officer had license, log book problems, police say

MCSO detention officer dies in traffic wreck

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.

Justin Folsome, 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 underride should be investigated as a potential factor in truck crash injuries and deaths.

NATIONAL SHERIFFS’ ASSOCIATION SUPPORTS THE EFFORTS OF STOP UNDERRIDES AND ADVOCACY FOR COMMERCIAL VEHICLE SAFETY

In Memory of Manuela Gonzalez (November 29, 2020)

Underride Crash Map, , ,

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 woman died after her car struck the rear of a tractor-trailer on U.S. 59 near Ganado Sunday evening.

Manuela Gonzalez, of Sullivan City, was traveling north when her 2015 Buick LaCrosse crashed into a produce delivery truck about 7:56 p.m. Sunday, said Sgt. Ruben San Miguel, spokesman with the Texas Department of Public Safety.

Gonzalez failed to observe that the tractor-trailer was driving at a reduced speed and hit the rear of the trailer, San Miguel said. She was wearing a seat belt at the time of the crash. Woman dies in highway crash near Ganado Sunday night

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.

Manuela Gonzalez, 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 underride should be investigated as a potential factor in truck crash injuries and deaths.

Save Lives by Lighting up Tractor-Trailers & Tanker Trucks

Safety Advocacy, Truck Safety, , , , , , ,

Truck 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.

Family members are appealing to the trucking industry — including truck owners and drivers — to install additional lights for improved visibility and to make sure that the required lighting and retroreflective tape are kept clean and properly maintained. It could mean the difference between life and death.

“A tanker truck pulled onto the unlit highway from a side road, crossing three lanes of traffic.  My sister – driving in the rightmost lane – in a mini van plowed into the underside of the tanker … There were no skid marks.  The reason for there being no skid marks is simple:  my sister never saw the tanker. She never saw the tanker because it was painted dark blue and had no lights on the sides that were clean and clearly visible. . .” Forman writes.

Forman goes on to argue that if the tanker had been painted silver and had “lights illuminating the entire outline of the tanker” the crash could have been avoided. Family petitions for more lights, no ‘dark colors’ on big rigs following fatal crash

Read more about their story and petition here:

The family’s petition goes into detail about why it is so important to make large trucks as visible as possible especially at nighttime:

In 2018, 96% of vehicle occupants killed in two-vehicle crashes involving a passenger vehicle and a large truck were occupants of the passenger vehicles. (IIHS, 2019) (Source: https://driving-tests.org/driving-statistics/

In 2018, 37% of all fatal crashes, involving large trucks occurred at night (6:00 pm to 6:00 am). (FMCSA, 2016) (Source: https://driving-tests.org/driving-statistics/

“The main factor related to the driver’s ability to see a crossing truck is target conspicuity, or how well an object stands out from its background. Target conspicuity relies largely on contrast characteristics such as color, movement, brightness, shape and size.

“Most commonly with trucks, the misconception is that their large size by itself makes them conspicuous. At night the size of the trailer by itself will not make it conspicuous since other contrast problems will make the trailer virtually invisible. Without any close-in lighting reflecting off the painted surface of the trailer, it will appear black against the black background. Then an approaching driver will have to rely on the side marker lights for his only cue to the presence of the trailer. However, even with the legal placement of marker lights on the sides of the trailer, approaching drivers will still often not perceive the trailer as an obstruction blocking their path.

“Marker lights are small and can be spaced as far as 26 feet apart on the side of a trailer, not providing on-coming drivers with enough information to determine that what they are looking at is a trailer. Marker lights can be misleading, and without an external light source, trailers are often not identified until the headlights of oncoming vehicles directly illuminate them. When their headlights illuminate the trailer, on-coming drivers will only be 100 to 200 feet away, and unable to stop at higher speeds.”

“Retroreflective tape is very effective in making trailers visually –stand out. However, a truck driver should never assume that the presence of this tape on a trailer will automatically guarantee that the trailer will be seen. If the tape is dirty, badly worn, or if the truck is at a steep angle to traffic, oncoming drivers may not be alerted to the presence of the trailer. The underride hazard is still present. Therefore Lights all around the sides are a much better alternative.”

An in-depth discussion of causes of underride collisions can be found at: crashforensics.com: Truck Underride Collision Analysis

NOTE: This is a very important issue. Having more warning that a collision is imminent will mean that the driver of the passenger vehicle will be more likely to brake and reduce the vehicle speed upon collision. However, this is not an either/or situation. Without adequate underride protection, even at speeds as low as 15 mph, a passenger vehicle can go under the truck — causing catastrophic underride and Passenger Compartment Intrusion injuries.

With both adequate truck conspicuity and underride protection, many lives will be saved.