Warning letters will be dropping through the letterboxes of hundreds of motorists after a countywide Community Speedwatch week.
Community volunteers who worked throughout the town and surrounding villages counted 4,775 vehicles during the week, with 155 warning letters being sent to drivers who ignored speed limits.
Across Mendip, 32 groups took part and checked 8,772 vehicles, of which 308 were sent a warning letter or a notice of intended prosecution.
The safety camera van was also in and around the town during the initiative but exact figures have not yet been released.
Frome Community Speedwatch coordinator Ashley Reay said that on some sites where checks were made it showed a reduction in speeding but other sites showed no improvement at all.
Mr Reay said: "Dozens of motorists were caught speeding and will face prosecution by the police in the next few weeks.
"Some sites, where checks were made, showed a reduction in speeding while others showed no improvement at all.
"These sites will be targeted by the Road Traffic Police Unit over the coming weeks and months.
"But despite being very high profile and highly visible, some motorists were still speeding past the check points at up to 75 per cent above the speed limits and those recorded will face prosecution."
Avon and Somerset police commended Speedwatch volunteers for their efforts over the week.
Operations and traffic Chief Inspector John Holt said: "The enforcement and awareness week was very successful in sending out a strong message about the dangers of speeding.
"We are very grateful to all the Community Speedwatch volunteers for their continued and valuable work.
"We will detect and stop speeding drivers every day of the year.
"We are determined that a robust enforcement approach and an effective driver education programme will make our roads safer for all."
Figures across the county have shown that 96 drivers were given endorsable fixed penalty notices, with 43 reported for summons and another 46 referred to driver improvement courses.
Another 342 were issued with warnings about their driving.