Some of those required improvements are already known and we have already started work on some specific projects where there is an immediate need to fill a known gap.
Mae rhai o'r gwelliannau hyn sydd eu hangen yn hysbys yn barod ac rydym eisoes wedi dechrau gweithio ar rai prosiectau penodol lle mae angen llenwi bwlch hysbys ar unwaith.