Dublin City Council will be introducing a new traffic signalling system to encourage motorists to obey the new 30km speed limit that will be enforced from next Monday.
Click here to see map of new system
Motorists keeping under 30 km/per hour could meet continuous green lights on a clear road but those travelling any faster will meet a red light according to Cllr Andrew Montague (Lab) chairman of the council's Transport Committee.
The council will be introducing the system on selected routes like the Quays when the new 24 hour speed limit comes into force.
Cllr Montague said that congested traffic moves slower when there are stops and starts but will be slightly faster with a smoother traffic flow.
He also said the new limit will make the city centre a more attractive place for pedestrians and cyclists.
The new speed limit area will cover an area North to South from Bolton St to St Stephen's Green and West to East from Church St to Gardiner St.
But the Automobile Association has claimed the new limit will 'infuriate' motorists.
AA Director of Policy Conor Faughnan responded 'There is just no sense in this, 30 kph zones work when they are engineered properly, in traffic calmed areas where they are self policing.
He continued, That's what they are for, applying them en masse on roads that are engineered for high volumes at flowing speeds is absurd.
He said we have problems enough countrywide trying to end the scourge of badly set speed limits without the capital city making a mockery of sensible road design.'