The A5 Trunk Road (Halton Roundabout to Whitehurst Roundabout, Chirk, Wrexham County Borough) (Temporary Prohibition of Vehicles) Order 2018 / Gorchymyn Cefnffordd yr A5 (Cylchfan Halton i Gylchfan Whitehurst, Y Waun, Bwrdeistref Sirol Wrecsam) (Gwahardd Cerbydau Dros Dro) 2018