Many NHs across the country are seeing expansion from single carriageway to dual carriageway setups, and as part of this the new NHs often get route realignments. How do I add these new NHs to the existing NH relation? Should the old single carriageway segments be removed and put into a new “old NHxx” relation? Or should both be kept in the same NH relation? I added a few segments of NH161’s new 10 lane setup here: Way: NH161 (1239017017) | OpenStreetMap but I wasn’t sure how to add it to the NH161 relation. Any help on the preferred way to handle this?
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Ce sujet de discussion accompagne la publication sur https://community.openstreetmap.org/t/tagging-upgraded-expanded-nhs/107972