question: A1 road continues to be N1 road and M1 motorway at a city that had how many inhabitants in 2016 ?
answer: 1,904,806 people
context: Title: M1 motorway (Republic of Ireland)
  Passage: The M1 motorway (Irish: "Mótarbhealach M1" ) is a motorway in Ireland.  It forms the large majority of the N1 national primary road connecting Dublin towards Belfast along the east of the island 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.  It also forms a significant part of the road connection between Dublin and the Northern Irish cities of Newry, and Lisburn.
  Title: M2 motorway (Pakistan)
  Passage: The M-2 Motorway (Urdu: ‎ ) is a North-South motorway in Pakistan, connecting Rawalpindi/Islamabad to Lahore.  The motorway is 375 km long and located entirely in Punjab.  It passes through Kala Shah Kaku, Sheikhupura, Khanqah Dogran, Kot Sarwar, Pindi Bhattian, Salem, Lilla, Kot Momin, Kallar Kahar, Balksar, Nila Dulha and Chakri before ending just outside the twin cities Rawalpindi and Islamabad.  It was the first motorway built in South Asia.  At Junction of M2 and M1 there is an interchange which on one side connect Islamabad/Rawalpindi through an expressway of 8 km long, and the new Islamabad international airport through the other side of junction.  It then continues on to eventually become the M1 motorway linking the twin cities with Peshawar.  The M-2 crosses the junction of the M4 (to Faisalabad) at Pindi Bhattian.  It is part of Pakistan's Motorway Network.  Chaudhary Ghias Mela recently inaugurated the Sial More interchange which exits at Sial More and provides an alternate route to Sargodha.
  Title: A1 road (Northern Ireland)
  Passage: The A1 is a major route in Northern Ireland.  It runs from Belfast via Lisburn and Banbridge to the border with the Republic of Ireland south of Newry, from where the road continues to Dublin, becoming the N1 road and M1 motorway.  Between Sprucefield and Carrickcarnan the road forms part of the European route E01.
  Title: Milton Malsor
  Passage: Milton Malsor is a village and civil parish in South Northamptonshire, England.  The population of the civil parish at the 2011 census was 761.  It is 4 mi south of Northampton town centre, 45 mi south-east of Birmingham, and 66 mi north of central London; junction 15 of the M1 motorway is 2 mi east by road.  The area of the Milton Malsor civil parish is about 1650 acre , stretching from north of the M1 motorway between junctions 15 and 15A, south to the West Coast Main Line, east to the A508 and A45 roads, and west to the A43 road.
  Title: List of highways numbered 1
  Passage: The following highways are numbered 1.  For roads numbered A1, see list of A1 roads.  For roads numbered B1, see list of B1 roads.  For roads numbered M1, see List of M1 roads.  For roads numbered N1, see list of N1 roads.
  Title: Dublin
  Passage: Dublin ( , Irish: "Baile Átha Cliath" ] ) is the capital and largest city of Ireland.  Dublin is in the province of Leinster on Ireland's east coast, at the mouth of the River Liffey and bordered to the South by the Wicklow Mountains.  The city has an urban area population of 1,173,179.  The population of the Greater Dublin Area, as of 2016 , was 1,904,806 people.
citations: Dublin A1 road (Northern Ireland)