It will examine all aspects of the M4 Corridor around Newport Project and take into consideration the most up-to-date and accurate information, as well as all suggested alternatives.
Bydd yn edrych ar bob agwedd ar Brosiect Coridor yr M4 o amgylch Casnewydd, ac yn ystyried yr wybodaeth ddiweddaraf fwyaf cywir, yn ogystal â phob awgrym arall a ddaw.