landuse=forest is used to tag tree covered area, not for how land is used It is also basically universally interpreted this way by various data consumers.
Sep 25, 2020, 00:05 by [email protected]: > Steve, > Just a reminder, landuse is to tag what the land is used for. landuse=forest > is for areas that have harvestable wood products, ie trees. Just because > there was a fire doesn't mean the landuse changes. Landcover is a better tag > for burnt areas as well as areas just clearcut. > > > > On Thu, Sep 24, 2020 at 2:31 PM stevea <> [email protected]> > wrote: > >> I didn't get a single reply on this (see below), which I find surprising, >> especially as there are currently even larger fires that are more widespread >> all across the Western United States. >> >> I now ask if there are additional, appropriate polygons with tags I'm not >> familiar with regarding landcover that might be added to the map (as >> "landuse=forest" might be strictly true now only in a 'zoning' sense, as >> many of the actual trees that MAKE these forests have sadly burned down, or >> substantially so). >> >> Considering that there are literally millions and millions of acres of >> (newly) burned areas (forest, scrub, grassland, residential, commercial, >> industrial, public, private...), I'm surprised that OSM doesn't have some >> well-pondered and actual tags that reflect this situation. My initial >> tagging of this (simply tagged, but enormous) polygon as "fire=perimeter" >> was coined on my part, but as I search wiki, taginfo and Overpass Turbo >> queries for similar data in the map, I come up empty. >> >> First, do others think it is important that we map these? I say yes, as >> this fire has absolutely enormous impact to what we do and might map here, >> both present and future. The aftermath of this fire (>85,000 acres this >> fire alone) will last for decades, and for OSM to not reflect this in the >> map (somehow, better bolstered than a simple, though huge, polygon tagged >> with fire=perimeter, start_date and end_date) seems OSM "cartographically >> misses something." I know that HOT mappers map the "present- and >> aftermath-" of humanitarian disasters, I've HOT-participated myself. So, >> considering the thousands of structures that burned (most of them homes), >> tens of thousands of acres which are burn-scarred and distinctly different >> than their landcover, millions of trees (yes, really) and even landuse is >> now currently tagged, I look for guidance — beyond the simple tag of >> fire=perimeter on a large polygon. >> >> Second, if we do choose to "better" map these incidents and results (they >> are life- and planet-altering on a grand scale) how might we choose to do >> that? Do we have landcover tags which could replace landuse=forest or >> natural=wood with something like natural=fire_scarred? (I'm making that up, >> but it or something like it could work). How and when might we replace >> these with something less severe? On the other hand, if it isn't >> appropriate that we map any of this, please say so. >> >> Thank you, especially any guidance offered from HOT contributors who have >> worked on post-fire humanitarian disasters, >> >> SteveA >> California (who has returned home after evacuation, relatively safe now >> that this fire is 100% contained) >> >> >> On Aug 29, 2020, at 7:20 PM, stevea <>> [email protected]>> > wrote: >> > Not sure if crossposting to talk-us is correct, but it is a "home list" >> for me. >> > >> > I've created a large fire perimeter in OSM from public sources, >> >> http://www.osm.org/way/842280873>> . This is a huge fire (sadly, there are >> larger ones right now, too), over 130 square miles, and caused the >> evacuation of every third person in my county (yes). There are hundreds, >> perhaps thousands of structures, mostly residential homes, which have burned >> down and the event has "completely changed" giant redwoods in and the >> character of California's oldest state park (Big Basin). >> > >> > This perimeter significantly affects landuse, landcover and human >> patterns of movement and activity in this part of the world for a >> significant time to come. It is a "major disaster." I'm curious how HOT >> teams might delineate such a thing (and I've participated in a HOT fire >> team, mapping barns, water sources for helicopter dips and other human >> structures during a large fire near me), I've simply made a polygon tagged >> fire=perimeter, a name=* tag and a start_date. I don't expect rendering, >> it's meant to be an "up to right about here" (inside the polygon is/was a >> burning fire, outside was no fire). I wouldn't say it is more accurate than >> 20 to 50 meters on any edge, an "across a wide street" distance to be "off" >> is OK with me, considering this fire's size, but if a slight skew jiggles >> the whole thing into place better, feel free to nudge. It's the tagging I'm >> interested in getting right, and perhaps wondering if or even that people >> enter gigantic fires that will significantly change landscape for some time >> into OSM, as I have done. This will affect my local mapping, as a great >> much has burned. Even after starting almost two weeks ago, as of 20 minutes >> ago this fire is 33% contained, with good, steady progress. These men and >> women are heroes. >> > >> > To me, this is a significant polygon in my local mapping: it is a "huge >> thing" that is a major feature on a map, especially right now. I firmly >> believe it belongs in OSM for many reasons and want it tagged "correctly." >> Yes, there are other maps that show this, I believe OSM should have these >> data, too, as this perimeter will affect much (in the real world) and much >> newer, updated mapping in OSM going forward. >> >> >> _______________________________________________ >> Tagging mailing list >> >> [email protected] >> >> https://lists.openstreetmap.org/listinfo/tagging >> > > > -- > @osm_washington > www.snowandsnow.us <https://www.snowandsnow.us> > OpenStreetMap: Maps with a human touch >
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