Slowcoach drivers are being blamed for causing around three serious accidents a week.
The number of casualties involved has soared by more than 80 per cent in the past five years.
Last year, 27 people were seriously hurt and another two killed in crashes where police believed someone driving too slowly had contributed to the accident.
A further 121 were less seriously injured, according to figures from the Department of Transport.
Those figures compare with 16 killed or maimed in similar crashes in 2014.
Slow drivers are believed to trigger incidents such as tailgating, undertaking, congestion and road rage, which can then lead to a more serious accident.
Motorists have also been killed trying to overtake a slow vehicle and hitting someone coming the other way.
Failing to put your foot down enough can lead to a £100 fine and three penalty points for careless driving.
One person who received a summons for the offence was stopped at the wheel of an Audi last month on the M1 in Derbyshire.
Police tweeted: “Cruising in lane 3 of 4 between 40mph and 50mph.
“Causing mayhem, forcing traffic to take evasive action. Perplexed look when explaining the concept of lane hogging.”
Hugh Bladon, of the Alliance of British Drivers, said: “There are no excuses for driving so slowly that you end up holding other people up. So many are in a world of their own.”