In 2020, I became aware of further proof that underride regulatory analysis was both flawed and non-transparent. For some reason, in 2017, the FMCSA contracted with the Volpe National Transportation Systems Center to carry out a Study of Truck Side Guards to Reduce Pedestrian Fatalities. Originally the study goals were listed on the website like this:

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.“  

When I found out that there were no plans to publish the completed study results, I made multiple inquiries at DOT and Congress. Some months later, after Departmental multimodal review, the results were whittled down to a literature review and finally published here:

A Literature Review of Lateral Protection Devices on Trucks Intended for Reducing Pedestrian and Cyclist Fatalities

When I realized that the majority of the report was missing, I submitted a FOIA Request asking for a copy of the entire report but was denied due to Exemption 5:

Exemption 5 protects the integrity of the deliberative or policy-making processes within the agency by exempting from mandatory disclosure opinion, conclusions, and recommendations included within inter-agency or intra-agency memoranda or letters. Exemption 5 also exempts from disclosure draft documents and recommendations or other documents that reflect the personal opinion of the author rather than official agency position.  Finally, Exemption 5 exempts from disclosure deliberative records that may cause public confusion where the information were not the basis for an agency’s action or final report .

Any reasonable person could look at the conclusions from the published study and compare the data to the literature referenced and realize that there were problems. Here’s a fact sheet outlining the apparent flaws in the report published by FMCSA in May 2020:

Fact Sheet on FMCSA Side Guard (LPD) Report

A flawed conclusion and inconsistent crash analysis cut the apparent Vulnerable Road User safety benefit of side guards by approximately half.

This is bad. This is wrong. In the first place, the error leads to a flawed cost benefit analysis for underride rulemaking. In the second place, even the undercounted underride deaths for Vulnerable Road Users (pedestrians, cyclists, motorcyclists) – to the best of my knowledge – have not been included with data on underride deaths in prior NHTSA underride regulatory analysis. Really flawed cost benefit analysis.

Logic says that a flawed cost benefit analysis will lead to a faulty conclusion. The conclusion from multiple underride rulemaking efforts in the past has been that a regulation is not cost effective. In other words, those lives which could have been saved by underride regulations were not deemed worth the cost.

And, by the way, what exactly was the rationale behind leaving out information from the original study? What was DOT concerned about revealing? Would it have actually justified a side guard regulation, which would, of course, have not been looked on very favorably by many in the trucking industry? Would the study have provided a broader look at additional advantages of side guards, including their ability to increase aerodynamic fuel savings, spray reduction, wind stability, GHG reduction, or other accompanying side guard benefits?

As far as I can tell, NHTSA’s faulty analysis has resulted in “guidance” to the industry which effectively turned a blind eye to the fact that trucks with a dangerous design indisputably allow cars and Vulnerable Road Users to go under trucks and sentence thousands of road users to Death By Underride.

Quote is from Ride for Sylvia – Cleveland – 2020

To compound the problem, at least in recent years, underride rulemaking has been assigned to the Crashworthiness Standards division of NHTSA in the USDOT. In my opinion, that is not a good fit. The majority of rulemaking done by NHTSA has to do with the auto industry, whereas FMCSA is the agency charged with motor carrier safety.

Furthermore, underride protection doesn’t fit the definition of crashworthiness, namely, “the ability of a car or other vehicle to withstand a collision or crash with minimal bodily injury to its occupants.“ Underride protection is installed on trucks but does not protect truck occupants. So the trucking industry gets away with claiming they’re not responsible to take care of the problem. And it isn’t a feature of the car whose occupants need to be protected, so the automakers don’t have any responsibility. Consequently, underride protection doesn’t truly fit into the current NHTSA division of responsibilities as far as  I can tell. The result: on top of industry opposition, underride rulemaking seems doomed because, organizationally, it falls between the cracks.

It appears to me that this complex issue would be better suited as a multimodal collaborative project under the coordination of the Office of the Secretary rather than buried at NHTSA without suitable input from other agencies and the yet-to-be-established Advisory Committee On Underride Protection. Maybe then the Underride Initiative would get the priority status it requires and All Road Users would finally be protected from Death By Underride.

Oh, look, DOT just published their priority Innovation Principles, including this one:

The Department should identify opportunities for interoperability among innovations and foster cross-modal integration. In addition, DOT’s posture must remain nimble, with a commitment to support technologies that further our policy goals.

Will the U.S. DOT let the flawed analysis stand? Or will the coming year see significant progress in underride rulemaking? Secretary Pete, the final determination will be in your hands. Will you decide that comprehensive underride protection is warranted?