This figure shows a computer-generated illustration of a post, colored in red and broken into a multitude of squares. The front end of the impact vehicle is shown striking the left-hand side of the post, and the post has begun to lean to the right hand side, with a gap forming near the mid-point of the entire structure. The very bottom of the post is shown completely distorted, with multiply squares missing, the post nearly twisted and jagged.
FHWA-HRT-05-096