The proposed prohibition of entry to vehicles to the lay-by, with the exception of authorised vehicles, is required in the interests of highway safety.
Mae angen y gwaharddiad arfaethedig sy’n atal cerbydau, ac eithrio cerbydau awdurdodedig, rhag cael mynediad i'r gilfan er mwyn sicrhau diogelwch ar y briffordd.