The A55 Trunk Road (Junction 11 (Llys y Gwynt) to Junction 12 (Tal-y-bont), Gwynedd) (Temporary Prohibition of Vehicles, Cyclists & Pedestrians) Order 2018 / Gorchymyn Cefnffordd yr A55 (Cyffordd 11 (Llys y Gwynt) i Gyffordd 12 (Tal-y-bont), Gwynedd) (Gwahardd Cerbydau, Beicwyr a Cherddwyr Dros Dro) 2018