Not that fuckin bright if she was walking ON TRAIN TRACKS WHEN SHE COULDN'T HEAR THE TRAIN!
Who's not too bright?
Deaf beauty contest winner Tara McAvoy was walking along the railroad tracks from her Austin, Texas, home to her mother's workplace, text-messaging family and friends, when a train struck her, according to the Austin Police Department.

Anyway, all semantics aside, she probably walked that way because it was open and not a lot of stuff going on that she'd have to hear to get away from like on a regular, road-side sidewalk. Well, aside from the occasional train. If you do the figures, it might be that the probability of being hit by a train is likely to be lower than a deaf person being hit by a car.
Still, I see it as a shame for anyone to go like that.