Motors: Call for M-way training.
Around a third of motorists admit to regular feelings of anxiety when driving on motorways, a survey also found.
Almost 80% rarely, if ever, look at the Highway Code, the survey for National Motorway Month discovered.
The survey, conducted by NOP Automotive and based on responses from 517 drivers, also revealed that only 19% know about the two-second rule, the safe, recommended gap between a car and the one in front.
National Motorway Month is a joint initiative by the RAC Foundation, Auto Express Magazine, the Institute of Advanced Motorists and the BSM driving school t o encourage safer driving on motorways. The campaign has been running through the busy holiday month of August.
The results of the survey showed that no drivers from East Anglia region regularly looked at their Highway Code, while the most regular code readers were those from the West Country.
As many as 28% of over-65s have never looked at the Highway Code since passing the test.
RAC Foundation executive director Edmund King said: "It is worrying, but perhaps not surprising, that only 4% of drivers regularly look at their Highway Code. It is vital that motorists do not become complacent when it comes to driving.
"Perhaps we need more direct ways to remind motorists of the rules of the road, including more use of variable signs and leaflets at motorway service areas."
Mr King went on: "Drivers of any age have a responsibility to ensure that they are up to the job. If in doubt, a driver should take up voluntary retraining.
"We would urge the government to consider the training needs of motorists on motorways carefully