http://www.legislation.gov.uk/wsi/2013/2160/madeThe M4 Motorway (Junction 32, Coryton, Cardiff) and A470 Trunk Road (Coryton Interchange, Cardiff to Abercynon Roundabout, Rhondda Cynon Taf) (Temporary Prohibition of Vehicles and 50 MPH Speed Limit) Order 2013Gorchymyn Traffordd yr M4 (Cyffordd 32, Coryton, Caerdydd) a Chefnffordd yr A470 (Cyfnewidfa Coryton, Caerdydd i Gylchfan Abercynon, Rhondda Cynon Taf) (Gwahardd Cerbydau Dros Dro a Therfyn Cyflymder 50 MYA Dros Dro) 2013King's Printer of Acts of Parliament2013-11-11