Hi, thanks for your mapping. Just wondering what level of checking you are doing and if you have surveyed/have local knowledge? 

For instance, you have changed cork to artificial grass in this changeset, which is incorrect and suggests you might not have checked previous changesets and comments on this object https://www.openstreetmap.org/changeset/156687932 or checked the wikipage for surface=cork.

As another example, https://www.openstreetmap.org/way/198626878 has been changed to surface=asphalt, but the previous tagging suggests it is only partly asphalt. It might have been more helpful to remove the surface value entirely (or move it to a description) which would then prompt surveys and refinement in apps like StreetComplete. 

https://www.openstreetmap.org/way/968877478 Could this also have meant timber rails? 

Messaging the original/previous mapper or leaving a map note might be a better approach where the actual surface value is less obvious/undocumented.

Thanks, and happy mapping :)