We will also need to understand the carbon impact of operating, maintaining and improving the road network, and progress on reducing the maintenance backlog to sustainable levels.
Bydd angen i ni hefyd ddeall effeithiau gweithredu, cynnal a chadw a gwella'r rhwydwaith ffyrdd ar garbon, a chynnydd o ran lleihau’r gwaith cynnal a chadw sydd wedi ôl-gronni i lefelau cynaliadwy.