Side underride guards could prevent death by truck decapitation

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Every truck on the road has a rear underride guard to prevent major

injuries in rear-end collisions. But there's still the matter of side

underride events, and they're no less dangerous.

The Insurance Institute for Highway Safety is currently testing

underride solutions for semi trucks. The IIHS already looked at the rear

guards that many of us are familiar with, so now it's turned its

attention to side underride guards, which stop perpendicular collisions

from turning deadly.

The majority of side cladding you see under a

semi truck is built for aerodynamic purposes to help increase fuel

efficiency. Those thin panels do next to nothing when a collision

occurs. However, companies such as AngelWing and Airflow Deflector Inc

beef those panels up to withstand collisions without permitting an

underride situation.

A traditional under-ride event is terrifying,

as you can see from the watchdog's video. The dummy's head is bent back

as the side of the truck intrudes on the passenger area, cutting

straight through the windshield and part of the roof. With underride

guards in place, it's more of a traditional collision, allowing the

dummy to contact the airbags and preventing any cabin intrusion.


is a clear need for this type of crash-prevention technology. Of the

1,542 people who died in crashes with tractor-trailers in 2015,

approximately 20 percent of them involved a side collision. And the

numbers have gone up more or less every year since 2011, so the IIHS has

started testing side underride guards to see if it can eventually

compel more trucking companies to include them.

Right now, federal

law mandates the implementation of rear underride guards, but not side

underride guards. Certain cities require them on city-owned or

contracted trucks, but that's about it. The data IIHS collects might go a

long way in changing that.

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