The A55 Trunk Road (Slip Roads at Junction 2 (Holyhead Interchange) & Junction 5 (Treban Interchange), Anglesey) (Temporary Prohibition of Vehicles) Order 2019 / Gorchymyn Cefnffordd yr A55 (Ffyrdd Ymuno ac Ymadael wrth Gyffordd 2 (Cyfnewidfa Caergybi) a Chyffordd 5 (Cyfnewidfa Treban), Ynys Môn) (Gwahardd Cerbydau Dros Dro) 2019