I spent some years driving, but particularly after giving up the car and being a full time cyclist, pedestrian, transit user, former in-line skater to get everywhere person, I find the attitude of drivers to be the problem more than anything. Even in marked cross walks people plow through sometimes and at lit intersections swing right turns without stopping to check if is clear (a legal obligation). This is why in New York where there are a lot more walkers there are no right on reds and speaking of New York, block lengths there make ours seem simply Goliath by comparison, I think one of the reasons so many cross mid block here. Sometimes even just walking on the sidewalk can be hazardous as people fly out of parking garages or lots across drive ways without checking both directions. Despite the law change, cell phone talking while driving is still rampant and texting and driving has been shown to impair reaction times worse than drinking in some cases.
My biggest gripe is when the value of a life becomes worth less than a few seconds of time. This is not to say people who jaw walk with concern are not a problem, but I think everyone, drivers, cyclists, pedestrians need to respect each other. Though sometimes when drivers come an inch from clipping me with their side view mirror while going 15 mph over the speed limit sipping latte my seldom seen temper can flare up.