I would modify the section [1] by replacing "it is recommended" by "it is suggested" and adding at the end a note saying that a large part of the community consider these two tags -smoothness and maxspeed:practical - too subjective.
Pieren (I also suspect the 12000 coming from some imports. Such numbers do not say many thing if we don't know how many contributors really used it). [1] Marking surface of road with tag surface without adding it to parallel roads (or adding only tags surface) may lead to unwarranted understating priority of road relative to surrounding[1]- so it is recommended to add also proposed tags smoothness=* and maxspeed:practical=*. _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging