http://www.legislation.gov.uk/uksi/1996/2162/signature/madeThe A501 Trunk Road (Marylebone Road/Upper Harley Street, Westminster) (Temporary Prohibition of Turns) Traffic Order 1996Roads and highwaysVehiclesKing's Printer of Acts of Parliament2011-07-04ROAD TRAFFICSigned in accordance with a direction from the Secretary of State for TransportDerek TurnerTraffic Director for London19th August 1996