I have pretty much quit riding my bike here in Atlanta. A substantial proportion of the drivers here (much higher than Tucson or Vancouver or Missoula) seem to have the attitude that the roads belong to them and cyclists can fuck right off. I’ve had people drive right up behind me and lay on the horn (on Piedmont, where there are four other lanes going the same direction), yell at me, and give me the finger, and others in my lab have had similar experiences.
I don’t know if that’s the kind of driver that killed a cyclist less than two miles from here, but I give it better than even odds.