Well I did sink a lot of time recently into understanding how the traffic behaviour is defined (the .trc file in particular and how it interacts with the corresponding rpk) I can tell that their behaviour is mostly random I don't think they are actively trying to hit you but for the lane change I can give you a .trc that has lane changing disabled (they are trying to use lane changing to get out of your way but they are really bad at it I must admit) : LINK (this would go to the maps\city\ai folder.