Hi Samuel, welcome to OpenStreetMap. Contributing to OpenStreetMap should not be based on assumptions. Also try to do some checks before adding or updating features.

This feature https://www.openstreetmap.org/way/169866115/history/4 as a result of previous organised mapping activities was changed from a railway (in reality) to seconday road (very wishful and invalid) then you added a speed limit (further adding to completely non-existing road)

Take your time to understand what OpenStreetMap is about and how to contribute to it, visit https://welcome.openstreetmap.org/