Introducing a 20mph default speed limit should make children safer from the moment they leave home, regardless of where they are going, and keeps them safe inside and outside of school hours.
Dylai cyflwyno terfyn cyflymder diofyn o 20mya wneud plant yn fwy diogel o'r eiliad y maent yn gadael eu cartref, waeth ble maen nhw'n mynd, ac yn eu cadw'n ddiogel o fewn a thu allan i oriau ysgol.