M1 motorway the A5, the motorway takes a more northerly route through the East Midlands, via Leicester, Loughborough, Nottingham to Sheffield, where the M18 splits from the M1 at Junction 32 to head to Doncaster. Originally, the M1 was planned to end at Doncaster but it was decided to make what was going to be the "Leeds and Sheffield Spur" the primary route with the section to the A1(M) south of Doncaster given the separate motorway number M18. From Junction 32, the motorway passes Sheffield, Rotherham, Barnsley and Wakefield, reaching the original end of the motorway at (the original) Junction 44 to
M1 motorway (Northern Ireland) M1 motorway (Northern Ireland) The M1 is a motorway in Northern Ireland. It is the longest motorway in Northern Ireland and runs for from Belfast to Dungannon through County Antrim, County Down, County Armagh and County Tyrone. It forms part of the route via the A1 in Northern Ireland (N1/M1 in the Republic of Ireland) between Belfast and Dublin as well as being a part of the unsigned European E01 and E18 routes. The road begins at the Broadway roundabout to the west of Windsor Park and running parallel to the Blackstaff River. Heading south as a dual three–lane motorway,