More traffic changes are coming into effect on the N7 Red Cow interchange off the M50 motorway in Dublin tonight.
From midnight, motorists intending to travel southbound on the M50 from the Naas direction will have to use the centre lane on the N7.
They will be directed to a new free-flow loop taking them directly onto the southbound carriageway.
Traffic heading towards Dublin city on the N7 should use the right-hand inbound lane.