Rathmines could be turned into a one way system under the BusConnects plan.
Transport officials argue the controversial move would make more room for bus and cycle lanes.
The BusConnects project will create 230kms of dedicated bus lanes and 200km of cycle lanes.
They will run along sixteen of the busiest routes in and out of the city centre.
This week, in-depth plans for the last six routes were made available for the public to give feedback.
A One-Way Rathmines?
One suggestion would mean the private cars could only drive through Rathmines heading out of town.
One Dublin Senator has warned it could turn the suburb into an "island".
Labour's Kevin Humphreys fears a knock-on measure would force drivers to "go one way into the city, through Ranelagh".
He said "The community is engaging, looking for changes to be made to the plan".
Feedback is something the National Transport Authority is encouraging people to give.
Criticism made in the first two phases of BusConnects has already led to changes being made.
CEO, Anne Graham, said they include "an alternative layout at Santry on the Swords to City Centre route".
You can see the full details of the plan here.
