Cyfrifoldeb Gweinidogion Cymru yw gweithredu, cynnal a chadw a gwella Traffyrdd a Chefnffyrdd Cymru, ased gwerth tua £13.5bn.  O beidio â gofalu amdanynt yn effeithiol ac effeithlon o ddydd i ddydd, gallai’r gwaith cynnal a chadw ddaw o ganlyniad i hynny arwain at oedi a tharfu mawr ar fywydau’r cyhoedd a busnesau.  Felly, yn ogystal â rhoi gwerth ein harian i ni, rhaid i’r model darparu gwasanaethau priffyrdd fod yn ddigon ymatebol a hyblyg i allu prysuro neu leihau gwaith yn ôl gofyn blaenoriaethau cyfnewidiol.
Welsh Ministers are directly responsible for the operation, maintenance and improvement of the Motorway and Trunk Road Network in Wales, an asset worth approximately £13.5bn. If not managed efficiently and effectively on a day to day basis the resulting unplanned maintenance causes significant delay and disruption to the public and business. Therefore, as well as providing value for money, the highway service delivery model must be highly responsive and agile enough to scale up and down to meet changing priorities.