Dublin city councillors are proposing a ban on all heavy-goods trucks entering the city centre on the day when the Port Tunnel opens next year.
They also want a complete ban on 'supertrucks', which are too large to fit into the tunnel, from entering the city at any time.
As part of a planned traffic overhaul, councillors also want to see wider footpaths, the elimination of one-way streets and the speed limit dropped to 30 miles an hour.