Question: A1 road continues to be N1 road and M1 motorway at a city that had how many inhabitants in 2016 ?
Sentence (from "M1 motorway (Republic of Ireland)"): The route heads north via Swords, Drogheda and Dundalk to the Northern Irish border just south of Newry in County Armagh, where it joins the A1 road and further on, the M1 motorway in Northern Ireland.
Relevant evidence: No