A study shows congestion on west Dublin roads will increase over the next 6 years unless new infrastructure is put in place. That's despite plans to invest in the road network already.
The N4/N7 corridor faces worsening delays at junctions, according to Transport Infrastructure Ireland.
An M50 study predicts the daily traffic between the N4 and N7 junctions could increase to 143,000 vehicles in 6 years time.
However South Dublin County Councillor William Lavelle has told 98FM News real time information shows we've already nearly reached that number.
Councillor Lavelle says "we don't have enough public transport and we have multi million euro train stations lying idle. But when you're in outer suburban locations like Lucan, Blanchardstown or Clondalkin you're going to have a higher residual car usage rate. You'll always have a strain on the road network... we need the road capacity there, particularly if we're going to build more houses."
One proposal being put forward is to build a western Dublin orbital route to provide a link road between the N4 and N7 using either the existing Rathcoole junction or a new interchange.
It's also recommended that a number of large roundabouts be upgraded to traffic light junctions.