I think that adding the idea of "risk of degradation" is very enriching to the article.
Just to test the concept: if tracktype means durability/endurance more than firmness, what tracktype would you (and others) expect to see alongside with surface=stone? On Tue, Mar 18, 2014 at 2:14 AM, Dave Swarthout <daveswarth...@gmail.com> wrote: > Yes, I agree firmness works better than stiffness for describing a surface. > I still would prefer a term that better characterizes what Fernando said > above: "To me, the idea [of] a firm/soft mixture seems closely related to > "how well maintained" the track/road is, as mixtures that are not so > durable/steady/firm quickly wear down and look 'poorly maintained'." > > A poorly maintained road, or one that is not well engineered, or one > composed of loose, uncompacted materials will be much less durable than one > that has those characteristics. Consequently, I still think durability fits > the bill. I hesitate to bring this up but the discussion about > trafficability tried to rationalize the relationship between a highway's > surface, hardness, composition and smoothness and ran into similar problems > (David Bannon?) > > FWIW, borrowing again from Fernando above I would reword the definitions as > so: > > grade1: "heavily compacted hardcore" > grade1: [Usually paved. If unpaved then a heavily compacted mixture of > materials (gravel, sand, earth, clay) that provide a fairly smooth, durable > and relatively weather-resistant surface.] > > grade2: "unpaved (...) surface of gravel [a hard material] mixed with > varying amount of [soft materials] sand, silt and clay" > grade2: [Unpaved (...) surface of gravel mixed with a varying amount of > other materials and lightly compacted or rolled to provide a good surface. > Less durable or weather resistant than a grade1 track.] > > grade3: "even mixture of hard and soft materials" > grade3" [Almost always an unpaved dirt road. A mixture of uncompacted hard > and soft materials providing a reasonable surface. Subject to moderate > degradation in bad weather. ] > grade4: "prominently with soil/sand/grass [soft materials], but with some > hard materials" > grade4: [A rougher unpaved dirt road with a mostly soft surface, poorly > maintained and not very durable. Rain and other bad weather degrade this > type of track rapidly.] > grade5: "lacking hard materials" > grade5: [A very rough unpaved track composed of loose, uncompacted, soft > materials often having a surface of grass and dirt, or, in wet weather, mud. > Not very durable -- easily eroded.] > > Other OSMers have amended this list to include grade6 and even grade7 for > tracks passable by 4WD or ATV only. What about those? > > > > On Tue, Mar 18, 2014 at 8:57 AM, Fernando Trebien > <fernando.treb...@gmail.com> wrote: >> >> "Firmness" sounds good to me: >> http://www.merriam-webster.com/dictionary/firmness >> >> I know that "soundness" means the same but has some additional >> meanings (http://www.merriam-webster.com/dictionary/soundness), >> "firmness" is more specific. >> >> On Mon, Mar 17, 2014 at 9:09 PM, johnw <jo...@mac.com> wrote: >> > >> > >> > >> > On Mar 18, 2014, at 1:35 AM, Fernando Trebien >> > <fernando.treb...@gmail.com> >> > wrote: >> > >> > Replacing 'stiffness' >> > with something else is absolutely fine with me. >> > >> > >> > >> > What about firmness? soundness? >> > >> > >> > Javbw >> > >> > _______________________________________________ >> > Tagging mailing list >> > Tagging@openstreetmap.org >> > https://lists.openstreetmap.org/listinfo/tagging >> > >> >> >> >> -- >> 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 > > > > > -- > Dave Swarthout > Homer, Alaska > Chiang Mai, Thailand > Travel Blog at http://dswarthout.blogspot.com > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > -- 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
