Only features that currently exist should be mapped.  Segments over roadways where the rails have been completely removed have been removed.  Segments in trees where existence cannot be confirmed were left.

https://wiki.openstreetmap.org/wiki/Tag:railway=razed#:~:text=Mapping%20a%20feature%20without%20any%20physical%2C%20verifiable%20presence%20(Good%20practice%23Map%20what%27s%20on%20the%20ground)%20is%20considered%20out%20of%20scope%20for%20OSM

https://wiki.openstreetmap.org/wiki/Tag:railway%3Dabandoned#:~:text=mapping%20of%20non%2Dexistent%20railways%20as%20incorrect