March 1, 2011
Underride guards on big rigs often fail in crashes; Institute petitions government for new standard
Underride test
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New crash tests and analysis by the Insurance Institute for Highway Safety demonstrate that underride guards on tractor-trailers can fail in relatively low-speed crashes 2010 Chevy Malibu into 2007 Hyundai 6/3/10 |
Post-crash photos
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2009 Chevrolet Malibu after a frontal crash into another vehicle 2/8/11 |
2010 Chevrolet Malibu after a 35mph crash into a trailer (Hyundai) with weak underride guard 6/4/10 |
Action shots
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SEVERE UNDERRIDE was the result of this 35 mph, 50 percent overlap crash test with a Vanguard trailer 5/6/10 |
NO UNDERRIDE resulted when the car struck the back of the Wabash trailer in the same overlap test at 35 mph 10/19/10 |




