Does that not remove whatever need there may or may not have been?I can see the need to clarify which roads are motorways and which are not due to the recent change to allow learner drivers onto them for professional tuition purposes.
It's not exactly difficult to see the (M) is it? Obviously that is motorway. The blue colour is also a giveaway.Will they be aware that the sections of road designated A1(M) are motorway or not?
Ignorant learners have to be accompanied by not-so-ignorant non-learners, who presumably are able to correct any such misapprehensions.I can see ignorant learners thinking it is OK to practise in their parent's car on these sections of road.