A parking zone is an area where all on-street parking is controlled by parking bays where parking is safe, or yellow lines where parking is dangerous or obstructive.
Mae parth parcio yn ardal lle caiff yr holl drefniadau parcio ar y stryd eu rheoli gan fannau parcio mewn lleoliadau diogel, neu linellau melyn lle mae parcio'n beryglus neu’n achosi rhwystr.