http://www.legislation.gov.uk/uksi/1993/361/article/2/madeThe A249 Trunk Road (M2 to Bobbing Improvement Slip Roads) Order 1993Roads and highwaysRoad buildingKing's Printer of Acts of Parliament2011-07-04HIGHWAYS, ENGLAND AND WALES2The centre line of each of the slip roads is indicated by a heavy black line on the deposited plan.