What you describe as "walk in front of a moving vehicle" could just as well be described as "drive into a pedestrian." Your very phrasing assumes guilt for one party and innocence for the other, when there's no particular reason to assign it that way.
If one crosses into the territory of the other without following a prescribed rule of law, who do you think should take responsibility?
In order for me to "drive into a pedestrian" I'd have to swing my car onto a crowded sidewalk, and unless a swarm of bees exits the car with me I'd have a hard time maintaining my innocence after that.