Hi Aya

I know the "R" was added around 2018, but the CNERR "Centre National d'Etudes et de Recherches Routières" don't use the "R" (N11, P3440...).
I think the "ref" attribute is a technical datum to link with official references.

So I've decided to don't remove the "R" for route relation, but remove it on ways.

I hope you understand my argument.

Thanks again
Cyrille37