All posts by Marianne

In Memory of Ashley Williams (February 23, 2020)

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.

Indiana State Police say 32-year-old Ashley Williams, of Marshall, Illinois was killed in a Sunday afternoon crash on Interstate 70.

According to troopers, a semi tractor-trailer driven by 54-year-old Sergiy S. Shadrin, 54, of Newmarket, Ontario, was traveling westbound on Interstate 70 in the driving lane near the state line with its hazard lights activated because of slow traffic. Shadrin told police he felt an impact in the rear of his semi and immediately stopped.

According to police, a 2011 Jeep driven by Williams was traveling westbound in the driving lane directly behind the semi tractor-trailer and failed to observe slowed traffic, running into the rear of Shadrin’s semi-tractor trailer. Williams died from her injuries at the scene.

http://www.wbiw.com/2020/02/24/illinois-woman-dies-in-crash-on-interstate-70/

https://www.theindychannel.com/news/call-6-investigators/advocates-seek-change-as-underride-crash-claims-another-life-in-indiana

See more underride tragedies at Underride Crash Memorials and #STOPunderrides. To add 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.)

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 Audria Truelove (February 23, 2019)

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.

We learned that the Illinois woman who was killed in a semi versus vehicle accident this morning on Route 1 in Marshall was a Lincoln Trail College student and member of the softball team. . .

According to the Illinois State Police 20 year old Audria Truelove, of Martinsville, Illinois was traveling behind a semi-truck driven by 39 year old Rahshawn Jordan of Maryland.

When Jordan slowed down due to feeling ill, ISP says Truelove did not slow down and struck the back of the trailer, causing the fatal accident.

https://www.mywabashvalley.com/news/lincoln-trail-college-student-killed/

See more underride tragedies at Underride Crash Memorials and #STOPunderrides. To add 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.)

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.

Congressman Price Questions Secretary Chao About DOT’s Plan To Address GAO Truck Underride Recommendations

What is DOT going to do about deadly truck underride? That is the question.

On February 27, 2020, at an Appropriations Subcommittee Hearing on DOT’s 2021 Budget Request, Congressman David Price (D-NC) asked Secretary of Transportation Elaine Chao about DOT’s plans to address the GAO truck underride recommendations. Here’s her reply:

“We actually just talked about this just yesterday. So this is a priority. We understand it. We do have a timeline & we want to get that to you.”   @SecElaineChao

I’m looking forward to seeing DOT’s timeline for addressing GAO Truck Underride Recommendations. I’m hoping that it will reflect a decision to make underride a priority. After all, rear underride regulations have not been updated since 1996, we’ve been waiting for DOT to act on side underride regulations for fifty-one years, and there’s been radio silence on front underride/override.

And it may well be more as underride deaths are vastly undercounted.

Underride can happen to anyone at any time anywhere.

In Memory Of Rufus Murry Wilson

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 tractor-trailer was backing into a residential driveway on Route 460. The tractor-trailer was blocking the road and the 95-year-old, Rufus Murry Wilson, struck the tractor-trailer on the side with his Chevrolet Silverado.

Rufus, of the 100 block of Baptist Road in Wakefield, died on impact. https://www.wavy.com/news/local-news/isle-of-wight/95-year-old-man-dies-after-crashing-into-tractor-trailer-on-route-460-in-windsor/

See more underride tragedies at Underride Crash Memorials.To add 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.)

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 Charles R. Samuel

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 GSP reported Charles R. Samuel, 76, of Cedartown, driving the Accord, pulled out into the southbound lanes headed northbound and struck one of the tractor trailers head on. The driver of the tractor trailer swerved into the second truck, which was knocked into the west side of the roadway.

Both drivers of the tractor trailers were uninjured. Polk County Coroner Tony Brazier said Samuels was pronounced dead at 8:09 a.m. at Floyd Medical Center.

https://www.northwestgeorgianews.com/polk_standard_journal/news/local/officials-driver-killed-after-hitting-tractor-trailer-truck-head-on/article_cf55d46a-58b6-11ea-a1dd-67c15f066007.html, February 26, 2020

See more underride tragedies at Underride Crash Memorials. To add 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.)

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.

An Exhaustive Look at Truck Underride: “Moms want Congress to prevent the kind of truck crashes that killed their daughters”

Raleigh News&Observer reporter Richard Stradling attended our workshop on underride, Turning Tragedy Into Advocacy: Two moms on a mission to make truck crashes more survivable, at the North Carolina Vision Zero Traffic Safety Conference on August 6, 2019. It inspired him to investigate the underride issue and this week he published the result of his in-depth research:

Moms want Congress to prevent the kind of truck crashes that killed their daughters

I appreciate the time he took to present the viewpoints of multiple stakeholders and then go a step further. He provided a platform for counterargument, allowing us to question or challenge potentially misleading information so that the reader could be more fully informed and not left with the wrong impression.

Save the Date (April 17): Side Guard Task Force Meeting

The Purpose of this meeting will be to collaboratively discuss Strategies to Solve the Side Underride Problem

UPDATE: Due to the coronavirus pandemic, we are changing the format of this to a Zoom meeting. Let us know if you would like to join us!

1. Opening Remarks

2. Setting the Stage for our Consensus Task: Systems Thinking Group Exercise to identify systemic factors impacting resolution of the underride problem, Kristin Hassmiller Lich & Becky Naumann, UNC SPH

3. Collaborative Discussion of Specifications for Side Guards, Andy Young, Facilitator

4. Lunch

5. Collaborative Discussion of a Plan for Implementation of Industry-wide Installation of Side Guard Solutions, Andy Young, Facilitator

6. Wrapping up: Next Steps in This Process

Side Guard Task Force SAVE THE DATE 2

Crash Tests of Rear Underride Guard Reinforcement Attachments, 2016 & 2020

In 2016, Aaron’s team conducted a full overlap rear crash test at approximately 35 mph closure.  This test, which was conducted on a reinforced trailer that had already suffered significant rear collision damage.  The lightly reinforced rear guard wasn’t able to prevent underride.  (TrailerGuards.com

Aaron’s team has continued to develop trailer underride guards.  Recently, they crashed a reinforced trailer with a 2012 Chevy Impala at 38 mph and approximately 25% overlap.  This test illustrated that bolt on reinforcements can prevent deadly underride and passenger compartment intrusion (PCI).   

Video of Crash Test into a 2005 Vanguard Trailer with a reinforced rear underride guard at 38 mph on January 25, 2020:

Compare that to a crash test by IIHS of a Vanguard 2013 trailer with a weak rear underride guard at 35 mph — at 8:28 on this video:

Crash car after the 38 mph collision into the rear of a tractor trailer: No Passenger Compartment Intrusion (PCI) Hallelujah!!!

Compare that to the initial design of the Rear Reinforcement Attachments on March 12, 2016:

Now that we have proof that these lightweight aluminum plates can prevent deadly underride, should we simply encourage voluntary adoption of this life-saving safety solution? Or should we require every truck in the U.S. to install safety equipment which can meet that level of performance?

In other words, are we going to make it the law to install equipment which can prevent underride when passenger vehicles collide with the rear of large trucks?

8-year-old boy killed in crash involving pickup, tractor-trailer in Lubbock County

1 person dies after pickup truck crashes into delivery truck on Taylorsville Road

Va. family grieves after man killed in Thanksgiving underride crash

Truck Underride Studies, Reports, & Patents

1896 This patent for a side underride protective device for street cars was issued on July 14 1896 and cited by numerous more recent underride patents: http://www.google.com.pg/patents/US564027.

1913 A patent was issued in 1913 for a “Safety Device for Motor Vehicles” to provide underride protection for the sides of large trucks. https://www.google.com/patents/US1127241

Since that time, numerous patents have been published which refer to this 1913 patent (with the patent information organized in these columns: Citing Patent, Filing date, Publication date, Applicant, Title):

  • These can now be found in a post dedicated to listing UNDERRIDE GUARD PATENTS. To see this list, go here. (1/20/20)

1969 DOT published a document for rear underride proposed rulemaking on the Federal Register on March 19, 1969, indicating that they “anticipated that the proposed Standard will be amended, after technical studies have been completed, to extend the requirement for underride protection to the sides of large vehicles.” https://annaleahmary.com/2016/03/side-guards-the-original-intent-of-nhtsa-rulemakers-in-the-1969-nprm-docket-no-1-11-notice-2/

1977 Page Patent guard rail for side protection on large wheel vehicles, 1977 US Side Guard Patent US4060268 William Page.pdf

1977 An Insurance Institute for Highway Safety (IIHS) crash test research illustrates the ineffectiveness of 1953 rear underride guard. 

1989 IIHS calls for Front Guards on Trucks to protect motorists: IIHS Status Report on Front Underride Protection August 26 1989

1992 IIHS Status Report on undercounted underride deaths: SR death count too low

1996  Volvo began manufacturing trucks with Front Underrun Protection in 1996 in Europe — ten years before it became a legal requirement. This is a patent filed in 2007 for an “Underrun protector and method of providing underrun protection.”  http://www.google.sr/patents/WO2008002242A1?cl=en Other relevant information on front underrun protection can be found here: https://annaleahmary.com/tag/front-underrun-protection/

Front Underride Protection Brochure 6

1997 Study illustrates the discrepancies in The Fatal Accident Reporting System (FARS) underride fatality count when compared to the NHTSA database, highlighting that more people are dying from underride than are being recorded. INCIDE~1

2009 Patent filed for a “Side impact guard device for industrial vehicles, particularly trailers or semi-trailers”

US7967349Apr 7, 2009Jun 28, 2011C.R.F. Societa Consortile Per AzioniSide impact guard device for industrial vehicles, particularly trailers or semi-trailers

2010 An evaluation of U.S. rear underride guards meeting federal requirements shows that these protections still allow for severe passenger vehicle underride, often resulting in serious or fatal injury. file:///C:/Users/LD46500/Downloads/22esv-000074.pdf

2011 IIHS crash test study demonstrates that federal underride safety standards can fail in relatively low-speed crashes. http://www.iihs.org/iihs/sr/statusreport/article/46/2/1

2012 Sapa Extrusions (inventor/engineer Malcolm Deighton) filed for a patent in 2012 for a “Semi trailer under-run protection device” which they later developed into a rear underride guard which was successfully crash tested on a trailer in April 2017. https://www.google.com/patents/USD703106

2013 New crash test study shows how underride guards on most heavy trucks fail to prevent underride and result in serious injury or fatality. http://www.iihs.org/iihs/news/desktopnews/new-crash-tests-underride-guards-on-most-big-rigs-leave-passenger-vehicle-occupants-at-risk-in-certain-crashes

2014 NTSB underride safety recommendations: NTSB Truck Underride Safety Recommendations to NHTSA

2014 IIHS Status Report on ongoing rear underride guards research:  IIHS Underride Status Report, October 2014

2015 NTSB recommends that regulators develop performance standards for side and front underride protection systems to improve highway vehicle crash compatibility with passenger vehicles. https://www.ntsb.gov/safety/mwl/Pages/mwl9_2015.aspx  

2015 NHTSA issued a Notice of Proposed Rulemaking on: ANPRM Single Unit Trucks  (withdrawn for not being cost effective) and NPRM improved rear underride guards (still in limbo as of 1/10/2020).

2015 Aaron Kiefer, crash reconstructionist and forensic engineer, was issued a patent for an innovative combination side & rear trailer underride protection system: https://www.google.com/patents/US9463759 Please see the numerous underride patents referred to in this patent.

2015 This patent for a Trailer rear impact guard cites numerous other underride protection patents: https://www.google.com/patents/USD790407

2016 IIHS created an Underride Timeline for presentation at the First Underride Roundtable.

2016 Stephen Batzer and Patrick Rogers granted a patent for an Adjustable side under-ride guard for sliding axle trailer, May 31, 2016.

2016 NHTSA issued a grant to Texas A & M Transportation Institute for computer modeling research on side underride protection. http://www.wusa9.com/news/investigations/truck-trailer-rear-guard-rules-have-huge-holes-safety-experts-say/457353893

2016 Aaron Kiefer granted TrailerGuard system underride protection patent, October 11, 2016.

2016 Stephen Batzer and Patrick Rogers granted a patent for a Telescoping side under-ride guard for sliding axle trailer, November 8, 2016.

2017 Seven Hills Engineering, Perry Ponder inventor of AngelWing side guard Underride Protection successfully crash tested at 35 MPH by IIHS on 3/30/2017 and 40 MPH on 8/29/2017. Patent Pending  http://www.7he.us and http://airflowdeflector.com/airflow-2/

2017 IIHS TOUGHGuard Award Announced for improved rear underride guard design by trailer manufacturers, March 1, 2017

2017 IIHS tests side underride guards at 35 mph, and illustrates the dramatic impact side guards have in preventing serious injury and death. IIHS Announces Side Guard Crash Testing Results :

2017 DOE has issued grants for a Super Truck project which has included side skirts for fuel efficiency but not for safety. https://annaleahmary.com/2017/02/perfect-opportunity-to-transform-supertruck-into-an-esv-to-advance-underride-protection-dot-doe/

2017 AngelWing side guard successfully tested at Roundtable at 40 mph:

2017 SAPA (Hydro Extrusions) publishes results of 40 mph crash test of a Rear Impact (Underride) Guard: Sapa 40-30 RIG Test Engineering Report Version 1.3

2017 Wabash Trailers announced a prototype side guard, September 29, 2017.

2018 Texas A&M Side Guard Study (conducted with a grant from NHTSA): Computer Modeling and Evaluation Of Side Underride Protective Device Designs

2018 IIHS Announces 8 trailer manufacturers earned TOUGHGuard Award:

2018 The AngelWing side guard was successfully tested at 47.2 mph by its inventor, Perry Ponder of Seven Hills Engineering:

2019 FMCSA Volpe Transportation Center Study Final Report Completed by February 2019 but not available publicly (as of 1/10/2020). Goals include — Despite three decades of international experience, the operational, cost-benefit, and regulatory aspects of requiring truck side guards in the United States has not been studied. This research project addresses this gap. Five key tasks are included in this project: (1) study interaction of a potential side guard with other truck parts and accessories (e.g., fuel tanks, fire extinguisher, exhaust system) and the implications for a new Federal Motor Carrier Safety Regulation; (2) investigate applicable international side guard standards; (3) perform a preliminary cost-benefit analysis of truck side guard deployment; (4) propose recommendations; and (5) propose means for voluntary adoption.: Study of Truck Side Guards to Reduce Pedestrian Fatalities

2019 Test run of Aaron Kiefer’s SafetySkirt: Video Feb 24, 2 24 45 PM

2019 GAO Truck Underride Report

2019 D.C. Underride Crash Test Event held on March 26, 2019

2019 Vanguard Trailers granted application for strap side guard patent, June 20, 2019.

2020 Wabash Trailers Side Underride Guard Patent published February 4, 2020.

2020 Consensus Side Guard Standard developed by an Engineering Subcommittee in follow-up to an April 17, 2021 Zoom Side Guard Task Force Meeting. Consensus Side Guard Standard

2021 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.

2021 Protecting Passenger Vehicles from Side Underride with Heavy Trucks More research on side underride was published by SAE International in April 2021 — following a presentation by Garrett Mattos of the Friedman Research Center at a SAE Conference. Hopefully, the Department of Transportation now has enough research to make good on their March 19, 1969 intention to add underride protection to the sides of large vehicles.

2021 On September 14, 2021, a Petition for NHTSA To Recall Semitrailers Due To Lack Of Side Underride Guards was submitted to the Office of Defects Investigation.

2021 Patent for an Underride Guard Assembly for Trailers from Great Dane Trailers was published on October 7, 2021.

2022 Fact Sheet on FMCSA Side Guard (LPD) Report was submitted to the US DOT on January 12, 2022. @SecretaryPete, Will you fix flawed underride analysis or let deaths continue?

2022 SIDE UNDERRIDE GUARD ASSEMBLY FOR A TRAILER, Fontaine Commercial Trailer, Inc. patent for a side underride guard on flatbed trailers.

2023 Utility Trailer Manufacturing, side guard patent, July 4, 2023

2023 Great Dane Trailers, side guard patent, August 29, 2023

2024 Stoughton Trailers (STI Holdings, Inc.), side guard patent, Nov. 19, 2024

Summary of Underride Basics:

Examples of some of the thousands of underride crashes can be found at these two places online (neither of them being the least bit exhaustive compilations):

Ready For Crash Testing

Crash testing is always unnerving: Will it work — successfully preventing underride and Passenger Compartment Intrusion (PCI)? Or will it fail — providing some useful information but sending the enthusiastic engineer back to the drawing board?

Either way, the adrenaline of anticipation followed by the jarring crash invariably leave me unsettled.