A yw'r Gweinidog yn ystyried bod y polisi terfyn cyflymder 20mya wedi bod yn llwyddiant yng ngoleuni'r data gan Trafnidiaeth Cymru fod pobl yn gyrru 4mya yn arafach ar gyfartaledd na'r terfyn cyflymder 30mya gwreiddiol?
Preliminary data published by Transport for Wales shows that on average, drivers are driving 4mph slower than they were prior to the 20mph national roll out.
It is encouraging at this early stage to see that average speeds have reduced, and the level of the reduction is in line with our expectations at this point. We anticipate that speeds will continue to reduce over time. Every 1mph reduction in speed makes a real difference – so this is a real turning point.
The international evidence is clear, lower speeds saves lives – that’s fewer collisions, fewer deaths and fewer severe injuries, reducing the devastation to individuals and their families and the significant impact on the NHS and other emergency services.