Does it make sense to use a relation to group sections of a road that each have unique tags together?

Yes, am aware and said what I thought of that, but not going to seek them out along the ca 250km way, same as the long standing confusion of that road by some tagged as SR5 when all the km posts old and new continue to be installed as SS5 i.e. I cycled down Pratola Peliigna to Pescara centre last year, every single one up and down is SS5 (Strada Statale v Strada Regionale). Look at the ref and names on the map…:upside_down_face:

So what’s best practise. I make street relations when more than a few parts AND when I make changes to a street for other reasons and find the name etymology of the ‘did not know that’ type… Via Napoleone does not tickle me fancy.