The road where Tiger crashed is defective (in my opinion). I just wrote a separate thread about it here:
http://forums.pelicanparts.com/off-topic-discussions/1086960-road-where-tiger-crashed-defective-my-opinion-you-judge.html
Very clearly a design defect in the road, and if someone is not paying attention (and actually overriding the visual cues in their brain), then they will repeat his fate. There are a lot of accidents on this road - this is for sure one reason why!
-Wayne