DUI is not simple traffic violation, certainly not the second or the third DUI offense
Simple traffic violations include, parking tickets, speeding tickets, blowing a red light, yield, do not enter, stop signs, making wrong turns, entering a one way street in the wrong direction, fender benders, and stuff like that.
If some states have a law that driving over certain miles per hour is a crmimnal offense, then that violation is not a simple traffic violation, it is a criminal offense.
Also if you get into an accident and it was because of negligence it can be a tort and may not be considered a simple traffic violation either, it depends on what the rulling for that case comes out to.