http://www.legislation.gov.uk/uksi/1994/2897/article/2/madeThe A419 Trunk Road (Latton Bypass and Slip Roads) Order 1994Roads and highwaysRoad buildingKing's Printer of Acts of Parliament2012-09-05HIGHWAYS, ENGLAND AND WALES2The centre line of each of the new trunk roads is indicated by a heavy black line on the deposited plan.