The number of speeders summoned to court increased almost 10% last year from 44,000 to 48,000, according to a Freedom of Information request obtained by LV= car insurance.
However, the number of Fixed Penalty Notices (FPNs) issued decreased by around 6%, indicating that a growing minority of drivers are committing more serious offences.
Research among motorists reveals almost one in six (16%) drivers who have been caught speeding were driving more than 25 mph over the limit at the time, which would be above the threshold for a court summons in most cases regardless of the local speed limit.
Overall last year Police handed out almost half a million (492,479) Fixed Penalty Notices for speeding and 48,006 court summons equating to British motorists being fined around £30 million for speeding.
Most drivers who were caught speeding said they were spotted by fixed speed cameras (62%), with a significant proportion caught by Police with a camera at the roadside (22%).
Over 360,000 motorists say they have been involved in an accident caused by a speeding motorist in the past five years. As a result, there has been growing concern from a section of society surrounding the government's decision to raise the motorway speed limit to 80mph.
According to the FOI data available, Lancashire Constabulary issued the most court summons in 2012 (10,641) compared with 52,751 fixed penalty notices in the same year.
Hampshire Constabulary was the next highest, issuing 6,778 court summons and 34,405 FPNs; followed by Nottinghamshire Police who issued 4,771 court summons and 23,597 FPNs that year.