This is France though. The abutters-key would only need to be used in the United States in order to infer the default speed limits as only there, a difference is made between residence districts and business districts. In France and/or the rest of the world, what about perhaps
urban=yes/no? (borrowed from source:maxspeed=FR:urban) But I do get the problem of different definitions of what is urban/"built-up area" and what not in different countries. Some countries define "built-up area" only within the limits defined by the "Welcome to Foo-Town" signs (e.g. Germany), some countries define it by the abutters (if there are houses, then it is built-up area, regardless of whether it is within city limits or not) and one by whether there is street lighting or not (United Kingdom). So, tagging something like highway:legal_type=built_up or urban=yes requires knowledge of how it is defined in the legislation. As much as it currently requires knowledge of how urban is defined when tagging source:maxspeed=FR:urban. I know that you know this, just saying because it is important to mention for the discussion here. On 19/09/2018 21:41, djakk djakk wrote: > Sound cool but there may be a gap between the reality and the law : > example : it looks like the countryside but legally it is inside the > built up area : > http://www.mapillary.com/map/im/Dybpz_fHGEmWdLjfG7OMvQ/photo > There should be 2 tags : abutters=rural and highway:legal_type=built_up > > > djakk > > > Le mer. 19 sept. 2018 à 21:27, Tobias Zwick <o...@westnordost.de > <mailto:o...@westnordost.de>> a écrit : > > Okay, so US-American legislation usually differs between "residential > district" and "business district" for maxspeed defaults, as opposed to > "built-up area" in most other countries. > > Actually, there is a tag to denote that a street is in a residential > district or business district. It comes from the early days of OSM where > people were mapping with their GPS trackers for the lack of available > aerial imagery. What about this?: > > abutters=residential > abutters=commercial > > See https://wiki.openstreetmap.org/wiki/Key:abutters > > On 19/09/2018 14:08, Greg Troxel wrote: > > Tod Fitch <t...@fitchdesign.com <mailto:t...@fitchdesign.com>> writes: > > > >>> On Sep 18, 2018, at 6:19 PM, Joseph Eisenberg > <joseph.eisenb...@gmail.com <mailto:joseph.eisenb...@gmail.com>> wrote: > >>> > >>> So on the boundary=administrative admin_level=6 for Rogers > County, we could have something like maxspeed:type:default=45mph > >> > >> Except that more typically there will be different default speed > >> limits on each of the various OSM highway classifications. So maybe > >> something more like “maxspeed:default:residential=25 mph”. > > > > I am not aware of *unposted* default limits in the US being > different by > > an entity smaller than state. In Massachusetts, there are default > > limits in state statutes, in particularly 30 mph in "thickly settled" > > areas (also defined in statute). Some towns have adopted 25 mph in > > thickly settled areas, and they have signs at the town borders. > > > > It's an interesting question at what level to tag individual roads and > > when to have some way of expressing rules and therefore to expect all > > data consumers to evaluate the rules. My quick reaction is that > > publishing rules for regions smaller than states is going to be too > > messy, vs just tagging the ways. > > > > With respect to maxspeed:default:residential, that's totally > unworkable > > in Massachusetts. The law does not talk about roads or even > define them > > as residential or not. The question for 30 (vs 40) is whether > the road > > is "thickly settled", which is > > > > built up with structures devoted to business, or the territory > > contiguous to any way where the dwelling houses are situated at such > > distances as will average less than two hundred feet between > them for > > a distance of a quarter of a mile or over. > > > > So there are many roads that are properly tagged "residential" but are > > not subject to the lower speed. > > > > In Mass, we have speed limit tags on almost all legal roads. To me, > > that seems like the most straightforward approach, even if there are > > also defaults. > > > > If the general defaults are intended for routing, that seems more or > > less ok. If they are intended to actually provide speed limit > guidance > > to drivers, I'm opposed, at least in jurisdictions where they aren't > > strictly reliable. > > > > _______________________________________________ > > Tagging mailing list > > Tagging@openstreetmap.org <mailto:Tagging@openstreetmap.org> > > https://lists.openstreetmap.org/listinfo/tagging > > > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org <mailto:Tagging@openstreetmap.org> > https://lists.openstreetmap.org/listinfo/tagging > > > > _______________________________________________ > Tagging mailing list > Tagging@openstreetmap.org > https://lists.openstreetmap.org/listinfo/tagging > _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
