Most Truck Underride Guards Fail To Stop Deadly Crashes, Study Says

Edmunds.com

Most Truck Underride Guards Fail To Stop Deadly Crashes, Study Says

Underride guards on the back of tractor-trailers don't always protect passenger vehicles from sliding beneath a truck's trailer in a crash, according to new crash test results.

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joe_scuba

That's not a surprise the under ride rails are to narrow and to still high high.
Trailer would need to have a lower read end and a soft area for impact.
Bottom line cars and trucks don't mix every well.

bimmerjay

@joe_scuba, did you watch the video? The problem isn't that the guards are too high or narrow, it's that they're too weak. They collapse easily, allowing the car to underride the trailer.

All they need to do is properly reinforce the guards from edge-t

krystalkid2

According to the rear end collision data from the Swedish insurance company Folksam and Autoliv 56% of all rear-end crashes are full overlap and 28% of rear-end collisions have 1/3 to 2/3 overlap. Only 14.2% of rear end collisions would be less then 1/3 overlap and end up hitting the outside edge of this under-ride guard as shown in the video. So at least you have statistics on your side. You can also get an impact attenuator / under-ride guard for your pickup truck or SUV at sparebumper.com.