Last Thursday Cavan Roads Policing Unit conducted operations on the N3.
This started at 4.30am and focused the area from Butlersbridge to Virginia.
A number of detections were made for dangerous and inappropriate overtakes, crossing hatch markings and exceeding the speed limits.
Fixed Charged Penalty Notices issued to all detected drivers.
Gardaí are asking all drivers to be aware of all other road users and their safety.