A record-breaking 2.4million drivers were caught speeding on roads in England and Wales last year – a jump of 37% in seven years.
Home Office data revealed driving too fast made up 84% of the 2.84million motoring offences recorded in the year to April.
RAC Foundation director Steve Gooding said: “Where limits are properly signposted and clearly feel right for the road, motorists have no excuse for going faster.
“But that means authorities have a responsibility to make sure the limits are appropriate and to avoid instances where the limit repeatedly changes along a single stretch.”
Cameras were involved in 97% of speeding incidents and reveal a postcode lottery.
The most speeding offences in 2018-19 happened in West Yorkshire, a total of 181,867.