An Garda Síochána has altered two checkpoint layouts on major routes into Dublin as part of Operation Fanacht.
A dedicated heavy goods vehicle (HGV) only lane has been introduced at two specific designated checkpoints on the N7 (Junction 6) and M2 (Junction 2).
Signage will be in place prior to reaching the checkpoints and the right hand lane (lane 3) will be available for HGVs only.
The new traffic layout came into effect at 07:00 this morning, and aims to minimise delay or disruption to business distribution, Gardaí say.
Gardaí add HGV drivers should reduce their speed as they approach the Garda checkpoints as they still may be required to stop.