Figure 8 shows that during 2022, 51.1% of all road collisions occurred on 30mph roads with the next highest proportion (24.6%) occurring on 60mph roads.
Mae Ffigur 8 yn dangos bod 51.1% o'r holl wrthdrawiadau ar y ffyrdd yn ystod 2022 wedi digwydd ar ffyrdd 30mya a bod y gyfran ail uchaf (24.6%) wedi digwydd ar ffyrdd 60mya.