Hello, There are 3 values for surface (ground, dirt and earth) that are described as "probably equivalent" in the wiki. The pictures tell a slightly different story: ground seems to allow the presence of "grass" along with "usage marks" (car or pedestrian tracks), as does earth, whereas dirt seems to include no grass and include the possibility of "mud" after rainfall.
TagInfo shows that "earth" is significantly less used than the other two. Could we officially recommend against that value then? Having so many equal things makes translation (and teaching) much harder than necessary, and I don't see when an application would differentiate between these values. I tried searching for their definitions in English dictionaries, but they point to each other as synonyms. "Earth" is sometimes cited as a "poetic description" of soil. "Ground" could describe anything from "soil" to harder surfaces. I believe the most accurate description would actually be something along the lines of "bare soil" (confirmed by comparing results in Google Images). -- Fernando Trebien +55 (51) 9962-5409 "The speed of computer chips doubles every 18 months." (Moore's law) "The speed of software halves every 18 months." (Gates' law) _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging