Hi ialex, thanks for cleaning this mess of railway relations. I noticed that now there are three relations for Biel/Bienne–La Chaux-de-Fonds: a) https://www.openstreetmap.org/relation/2468645 route=train – incomplete / b) https://www.openstreetmap.org/relation/2315633 route=railway and c) the new https://www.openstreetmap.org/relation/16997380 route=train which is identical to b) 2315633 but has a different ref. Is 225 the correct ref (as in c) 16997380) or is it 281 (as in b) 2315633)?

Then it looks like b) 2315633 should be deleted/merged with c) 16997380 and a) 2468645 should be mapped according to the PTNv2 scheme, correct?