http://www.legislation.gov.uk/wsi/2011/15/madeThe A55 Trunk Road (Eastbound Exit Slip Road at Junction 10 (Caernarfon Road Interchange), Gwynedd) (Temporary Prohibition of Vehicles) Order 2011Gorchymyn Cefnffordd yr A55 (Ffordd Ymadael tua'r Dwyrain wrth Gyffordd 10 (Cyfnewidfa Ffordd Caernarfon), Gwynedd) (Gwahardd Cerbydau Dros Dro) 2011King's Printer of Acts of Parliament2011-03-01