From midday on Friday, motorists exceeding the 100km/h limit between these two points will be subject to prosecution. The cameras, positioned approximately 8 kilometres apart, use automatic number plate recognition technology to calculate a driver’s average speed.

If a motorist is found to be driving over the limit, they will receive a fixed charge notice carrying a €160 fine and three penalty points. If unpaid within 28 days, the fine increases to €240, while a court conviction could result in five penalty points and a fine of up to €1,000.

This system is part of efforts to reduce speeding on the N2 approach to Slane Village, an area with a speed gradient that has been the site of numerous fatalities. In December 2023, local residents placed 23 crosses on Slane Bridge to commemorate lives lost on this stretch of road.

Similar to the system already in place on roads including the N3 in Co Cavan, the N5 in Co Mayo, the M7 in Co Tipperary, and in the Dublin Port Tunnel. The launch follows a recent Garda announcement that over 1,800 fixed charge notices issued between December 2024 and February 2025 will be revoked due to a certification issue with a static speed camera on the N17 in Co Mayo, which has since been certified and is operational again.

In addition to average speed cameras, Ireland also has static speed cameras and 58 mobile speed vans operated by GoSafe, covering over 1,500 safety camera zones nationwide.