Serious accidents on roads in Warwickshire have more than halved since the council brought in speed cameras a decade ago.
According to a study by the Road Safety Partnership there were 639 serious accidents or fatalities in the county in 2001, by 2010 this figure has dived 53% to 301.
Warwickshire currently has 34 fixed speed cameras. Data released by Warwickshire Police revealed that 32,600 motorists were caught speeding by fixed and mobile speed cameras in 2010.
A third of these opted to attend a speed awareness workshop instead of being prosecuted.
Fresh data also shows that fatal and serious injury collisions have fallen at fixed camera sites by an average of 76%.
Councillor Richard Hobbs said: "Speed cameras are not universally popular, but as this data shows their use has brought significant safety benefits."
Supt Adrian McGee, from Warwickshire Police said he was disappointed that "as the figures we have published demonstrate, there are still a significant number of drivers who disregard the safety of themselves, their passengers and other road users by exceeding speed limits".