The closure of Pigeon House Road in Ringsend to motor traffic is to continue for a year following a successful trial.
Bollards have closed the road near the roundabout junction with Sean Moore Road and the Toll Bridge Road only allowing access cyclists and pedestrians since August.
A council report stated that the Interim Mobility Scheme has eliminated 'Rat Running' completely, which has led to a safer environment.
"A greater sense of community now exists with the high volumes of cut through traffic no longer present. Interventions on Pigeon house Road has been requested by past and present elected Councillors over the last number of years. The current solution being trialled resolves the countless issues that existed on Pigeon House Road and surrounding streets".
Local representatives agreed to the extending the intervention at an area meeting and Labour Councillor Dermot Lacey said it has been well received in the area.
A similar scheme, which prevents through traffic on Grangegorman Road Upper and Lower and outside the entrance to the Technological University Dublin, is being tried out until the end of January.
This follows a city council survey that found that most drivers do not comply with new 30km/h speed limits.
The study found that 90% of northside streets surveyed and 100% of southside streets failed to reach a compliance rate of 85%
However, the study noted that the 30 km limit had succeeded in reducing overall speed in 85% of northside streets and 70% of those on the southside.
There was a wide variation with North Brunswick Street showing an average 23km reduction and 20km on Western Way, while Séan McDermott Street showed an increase of 12km and Pembroke Street was up 14km.
The Dublin Commuter Coalition welcomed the overall reduction but added "far too many of our current streets are designed in a way that encourages high speeds and endangers vulnerable road users".
