IMO the psychology is the same for drivers as a pedestrian. If you were trying to walk down the street and some twat kept standing in your way, you'd get angry. Eventually you might say something polite like "Excuse me." Or "Excuse me pal, I'm gonna smash your face in."
Somehow we manage to get to work each day without Ped Rage, I suggest that's because we can Communicate With Words.
In cars we cannot.
My solution is a large LED screen front and aft with the letters C, U, N and T that can be illuminated at will.
That, or short range radio, so you can politely ask people to move out of the way as one does on the streets.