Skip to main content

Dublin Tunnel gets average speed enforcement

Transport Infrastructure Ireland (TII) is working with the4 Irish police force, An Garda Síochána, on the installation of Ireland’s first average speed camera enforcement system, which will be deployed in the Dublin Port Tunnel. Opened in 2006, the 4.5 km tunnel forms part of the M50 C-Ring road around Dublin City. Traffic levels through the tunnel have increased by 40 per cent over the last five years and as a result there is statistically, an increase in the potential for collisions and accidents.
June 13, 2016 Read time: 3 mins
Transport Infrastructure Ireland (TII) is working with the4 Irish police force, An Garda Síochána, on the installation of Ireland’s first average speed camera enforcement system, which will be deployed in the Dublin Port Tunnel.

Opened in 2006, the 4.5 km tunnel forms part of the M50 C-Ring road around Dublin City.  Traffic levels through the tunnel have increased by 40 per cent over the last five years and as a result there is statistically, an increase in the potential for collisions and accidents.  

Average speed camera enforcement systems look to mitigate this potential because statistics show that there is typically a 50 per cent reduction in the collision rate once in operation.

The average speed camera enforcement system monitors a driver’s average speed while driving through the Dublin Port Tunnel and if a driver is above the 80 km/h speed limit the driver will be in violation and enforcement penalties will apply.

When the average speed camera enforcement system determines that a vehicle has exceeded the speed limit, it will automatically create a record of the violation which will then be transmitted to An Garda Síochána for their action. The enforcement procedure will mirror the existing procedures  developed by An Garda Síochána for automated processing of Road Traffic Offences that incur fixed charges and if applicable penalty points.

Large yellow poles will support the average speed camera enforcement system and testing will commence once the cameras are mounted. Upon completion of system testing it is anticipated that the system will go live later this year.

Average speed is recorded between two camera positions covering all lanes therefore switching lanes will have no effect on average speed monitoring.  The system will not have flashing lights or other operational indications, but it will be monitoring at all times.

Chief Superintendent Aidan Reid, Garda National Traffic Bureau said, “We welcome this enhancement to the operations of the Dublin Port Tunnel.  Due to an increase in traffic travelling through Dublin Port Tunnel this new enforcement system provides additional support toward maintaining a safe travel experience for all users of the Tunnel.”

“An average speed camera enforcement system will assist in maintaining the Dublin Port Tunnel’s strong safety record, said RII CEO Michael Nolan. “ TII is grateful to An Garda Síochána for supporting us with this operational improvement.”

Related Content

  • It’s official: 20 (or 30) really is plenty
    April 30, 2025
    A study has looked at what 20mph (30 km/h) speed limits mean in terms of road safety – and the answers are encouraging. Alan Dron speaks to transport researcher Aud Tennøy…
  • Hampshire Constabulary opts for Truvelo speed enforcement
    March 8, 2013
    The UK’s Hampshire Constabulary’s Safer Roads Unit has recently introduced new mobile speed enforcement technology to combat excessive speeds on the county’s roads. The LASERwitness Lite from Truvelo comprises laser speed measurement and digital video technology, combined with built in infra-red illumination for night time operation. The unit is extremely compact and can even be deployed from a police motorcycle if desired. This is beneficial in those locations where there is no suitable parking for a spe
  • Can ADAS impact middle-income countries?
    September 20, 2013
    Recent research by SBD shows that road-related fatalities are the eighth leading cause of death globally with more than a million people dying each year. Middle income countries, which include most ASEAN economies, account for 72 per cent of the world’s population and contribute to about 80 per cent of road traffic fatalities.
  • IAM shocked by the worst speeders in England and Wales
    February 12, 2015
    The UK’s Institute of Advanced Motorists (IAM) has lifted the lid on the worst examples of excessive speeding caught on safety cameras across England and Wales in 2014. Britain’s two worst speeders were caught at 146mph, both by Kent Police on the M25, one travelling anti-clockwise, the other going clockwise. There were three other recorded instances of speeds of 140mph or more; 145mph on the M6 toll road (70mph limit), 141mph on the A1 Great Ponton Northbound road (70mph limit) and 140mph on the A5 C