The effect of the Order is to temporarily restrict and prohibit traffic on lengths of the A477 trunk road between St Clears and Pembroke Dock to undertake works on or near the road.
Effaith y Gorchymyn yw cyfyngu a gwahardd traffig dros dro ar ddarnau o gefnffordd yr A477 rhwng Sanclêr a Doc Penfro er mwyn gwneud gwaith ar y ffordd neu gerllaw iddi.