http://www.legislation.gov.uk/uksi/2012/80/madeThe A419 Trunk Road (Blunsdon to Calcutt, Wiltshire) (Prohibition of U Turns) (Experimental) Order 2012King's Printer of Acts of Parliament2012-01-18 The A419 Trunk Road (Blunsdon to Calcutt, Wiltshire) (Prohibition of U Turns) (Experimental) Order 2012OrderThe A419 Trunk Road (Blunsdon to Calcutt, Wiltshire) (Prohibition of U Turns) and (Revocation of Experimental Order) Order 2013art. 4art. 1