People who hog the middle lane on motorways or tailgate other drivers could be fined £100 if they are spotted by police.
Until now this type of careless driving has gone unpunished because it is difficult to take the cases to court. The authorities hope that on the spot penalties will be enough to encourage motorists to drive more considerately. Kate Bunkall has been looking at the problem.
More top news
The full list of referendum results for South East. Overall the area voted 55.4% in favour of 'Leave'.
Full list of referendum results for South of the Meridian region. Overall the area voted 52.9% in favour of 'Leave'.
Full list of referendum results for Thames Valley. Overall the area voted 51.9% in favour of 'Remain'.