Our thoughts/beliefs, feelings/emotions and behaviour are inextricably linked. As human beings we cannot function without all of these elements and change to one of these elements will affect the others.
The first step for us is to recognise our own emotions, and how they make us act behind the wheel, and then to be aware that they will make other drivers act in very a similar way.
So the next time someone 'cuts you up', is tailgating you, pulls out in front of you or holds you up, consider not just the behaviour, but also what may be going on in their lives at the moment which may have causing this behaviour, try to hold back the judgement. Don't take it personally, it may have nothing to do with you!!
Drive safe! Be chilled :-)