TL-2 height to remain in place with steel blockouts?
A strongpost guardrail with steel blockouts is considered a Report 350 TL-2 application. There was successful crash testing for a TL-2 MASH guardrail with wood blockouts at 24″ and 25″. We are trying to determine an acceptable height to remain in place for a TL-2 application with steel blockouts on a 3R type project. Is there any past testing or guidance that is available for consideration?