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
M62 motorway delivery to the ports at Merseyside and around the Humber, all of which are transported via the M62. Annual average daily traffic flows of 100,000 cars were recorded east of the Pennines (junction 22) in 2006 and 78,000 cars west of the Pennines. The figures were increases from 90,000 and 70,000 respectively in 1999. By way of comparison, the UK's busiest motorway, the M25 carried 144,000 cars between junctions 7 and 23 in 2006. Stott Hall Farm, () the only farm in the UK situated in the middle of a motorway, was built in the 18th century on Moss Moor.