Pa gynlluniau sydd gan Lywodraeth Cymru i fynd i'r afael unwaith eto â'r mater o adeiladu ffordd liniaru'r M4?
Wedi'i ateb gan Ysgrifennydd y Cabinet dros Ogledd Cymru a Thrafnidiaeth
| Wedi'i ateb ar 20/06/2024
Transport for Wales is currently developing the recommendations of the South East Wales Transport Commission to improve alternatives to the M4 by improving connectivity between Newport, Cardiff and the wider region.