On Tue, Nov 20, 2018 at 12:27 PM Max Erickson <maxerick...@gmail.com> wrote:
> As other have mentioned, there are many numbered roads managed by the > USFS. They range in development from closed, abandoned log roads to > well maintained pavement. I map them using the FS prefix. > > For the general public one of the main uses is the publication of > motor vehicle access conditions: > > https://www.fs.fed.us/recreation/programs/ohv/ohv_maps.shtml > > I have shaped shields for them. I work from road routes, rather than direct tagging of the ways (I've discussed in the past why direct tagging of the ways is NOT workable for the complex overlays of route networks in North America.) The FS routes that I'm currently capable of rendering are not quite consistently tagged. I recognize, equivalently, network=US:FS, network=US:NFSR:*:NFH and network=US:NFSR:*:NFR. In both of the latter cases, the * has the name of the national forest in question, which is on the sign. The shield template is https://github.com/kennykb/osm-shields/blob/master/templates/US:NFSR.svg For the ref=* tagging on ways, again I don't see quite a consistent system yet. Over in Vermont east of me, I see ways tagged with ref=USFS 70, ref=FS 67 and ref=FR 224; all of these are the same network. Elsewhere in the country, I also see FSR nnn, NFSR nnn, and probably others. I'm continuing to pursue rendering based on route=road, on the 'build it and they will come' principle. Many of these roads need unsigned_ref, since many of them aren't signed at all (with any sort of directional signs, and often they lack hazard signs as well).I wouldn't advise importing reference numbers without some sort of verification that they are indeed bannered. (And yes, the Forest Service will publish closures *by number* on unsigned roads. Go figure.) The forest service roads range from two-lane hard-surfaced roads that can support heavy truck traffic at 90 km/h (55 mi/h is a typical posted speed limit on these) to rutted dirt tracks with far more than the usual quantity of rocks and roots, requiring an off-road vehicle to navigate. There are a lot of them. http://kbk.is-a-geek.net/catskills/test4.html?la=35.9283&lo=-81.8602&z=12 isn't atypical for the national forest road network. (Note that my renderer does rendering in a style like Carto's if a road has ref=* but is not a member of a road route - that's where the plain rectangular shields are coming from.)
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