This may all become moot with the introduction and material proliferation of self-driving cars.

I wonder how the intentional death toll of pedestrian deaths compares to the accidental. (I.e. if suicide is a significant factor in pedestrian deaths in traffic.)

In my opinion it takes two to tango. A hurried driver vs an inobservant, terrorist pedestrian. One pedestrian who expects that the world will stop for him or her. Or the terrorist driver whose mind is on the job, not on the road, or getting hijacked by a conversation on his or her cell phone, or being resolute that he or she won't be delayed in catching the next green to having to miss it by one more "stupid" pedestrian. Road rage, impatience, and self-indulgent self-importance are all signs that have cropped up in other expressions in this big city.