I like to think that I'm a good enough driver to spot possible issues along the side of the road and avoid them safely if necessary, but I know that if I'd been the person speeding down a highway at rush hour, I wouldn't be eagle-eyed enough to do what Kristyn Gamblain did on her way to work.
Sure, I might have spotted a dark blob sticking out from one of the concrete barriers, but I probably wouldn't have noticed it move.