Nearly half of drivers have experienced road rage and some have been threatened with physical violence.

As many as 32% say they are subject to road rage more than once a week, a new survey by insurance company Admiral found.

Of those road rage sufferers, 21% have had full-blown arguments with another motorist, while 36% said experiencing road rage made them drive more aggressively.

Being cut up was the leading cause of road rage, followed by rudeness of other drivers.

Motorists who drove too slowly were more likely to lead to road rage than those who went too fast.

Admiral spokesman James Carnduff said: "You have to ask yourself is it worth getting that upset at other road users? Will getting angry achieve anything other than raising your blood pressure and negatively impacting your driving?"