[9422WMR]

Guardrails and concrete barriers are no match for loaded 18 wheelers so whats the point? That double trailer Walmart rig will plow through just about any barrier on any highway given enough speed and angle.

[Alberta's Child]

Exactly. A guide rail (and this article loses credibility by failing to use the proper term) isn’t designed to stand up to a right-angle collision. It’s designed to deflect a moving vehicle back into the roadway in an area where running off the road would be particularly lethal to a motorist.

[qaz123]

An 18-wheeler, so match.

The Rivian pickup a like small pickup, kind of like a Tacoma, I shouldn’t be like semi.

[Steven Tyler]

yeahbut, professional drivers operate an 18 wheeler.
There are many dimwits with an absence of driving skills who can get into an EV

[T.B. Yoits]

The term guardrail came from the railroad industry, as seen in Patent 522038A from 1894 and was used for roadways until the lawyers steered toward the term guiderail because it turns out they often don't do the proper job of guarding.

The term guardrail is still in use:

https://kp.uky.edu/knowledge-portal/articles/guardrail/

Midwest Guardrail System:
https://mwrsf.unl.edu/mgs.php
"MGS (Midwest Guardrail System), which has redefined the entire W-beam guardrail industry and is recommended by the Federal Highway Administration"

From the American Association of State Highway and Transportation Officials (AASHTO) and the Federal Highway Administration (FHA) and the Transportation Research Board (TRB) National Cooperative Highway Research Program (NCHRP) Report 350.
https://onlinepubs.trb.org/onlinepubs/nchrp/nchrp_rpt_350-a.pdf "Full-scale impact testing has been and will continue to be the most common method of evaluating the safety performance of guardrails, median barriers, bridge railings, crash cushions, breakaway supports, truck-mounted attenuators, work zone traffic control devices, and other hardware.