The M4 Motorway (Junction 37 (Pyle), Bridgend to Junction 47 (Penllergaer), Swansea) (Temporary Prohibition of Vehicles) Order 2018 / Gorchymyn Traffordd yr M4 (Cyffordd 37 (Y Pîl), Pen-y-bont ar Ogwr i Gyffordd 47 (Penlle’r-gaer), Abertawe) (Gwahardd Cerbydau Dros Dro) 2018