By giving authorities a range of options to use, it is expected that they will use their discretion to provide the minimum signing they consider necessary and avoid clutter.
Drwy roi amrywiaeth o opsiynau i awdurdodau eu defnyddio, disgwylir iddynt ddefnyddio eu disgresiwn i ddarparu cyn lleied o arwyddion ag sy’n angenrheidiol yn eu barn hwy ac osgoi annibendod.