Rwy'n parhau i fod angen arfarniad o effeithiolrwydd cynlluniau diogelwch ar y ffyrdd i sicrhau fod cyllid yn canolbwyntio ar y cynlluniau hynny sy'n lleihau anafiadau.  Gan ystyried hyn wrth ddyrannu cyllid refeniw, nodais bedwar o brif ymyriadau y dylid ystyried eu cyllido.  Mae'r ymyriadau hyn yn cefnogi'r ddau gategori risg uchel a phlant fel defnyddwyr ffyrdd sy'n agored i niwed.  Sef:
I continue to require evaluation of the effectiveness of road safety schemes to ensure that funding is firmly focused on those initiatives that deliver casualty reduction.  Reflecting this approach in the allocation of revenue funding, I specified four primary interventions against which funding would be considered.   These interventions support the two high risk categories and children as vulnerable road users.  These were: