M18 motorway (Great Britain) and 12 June 2015. The M18 was originally to be part of the M1, but it was decided to route the M1 towards Leeds instead of Doncaster, and the routing of what would have been the M1 east of Sheffield became the M18. Data from driver location signs are used to provide distance and carriageway identifier information. The location sequence is a continuation of the M1 location sequence. !scope=col|miles !scope=col|km !scope=col abbr="Southbound"|Southbound exits (B carriageway) !scope=col|Junction !scope=col abbr="Northbound"|Northbound exits (A carriageway) !scope=col|Coordinates M18 motorway (Great Britain) The M18 is a motorway in Yorkshire, England. It runs from the east of
Sir Lindsay Parkinson & Co. Ltd Armagh. It opened its new headquarters, in December 1965, in Putney. In March 1966, it opened the £3.3 million motorway (M1) section from Sprucefield to Moira, and had been awarded the £7.5 million contract to extend it to Craigavon. In 1968, it was awarded the £6.75 million contract for the South of Quinton to Great Barr Section of the Midland Links Motorway (M5). In November 1968 it was awarded the £12.4 million contract for a thirteen-mile section of the M62. In January 1970, it was awarded the £9.2 million contract for the M4 section between Wickham and Theale. In June