Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Martin Koppenhoefer
sent from a phone > On 6. Apr 2020, at 16:51, Paul Allen wrote: > >> or use https://wiki.openstreetmap.org/wiki/Overpass_API/Permanent_ID > > I didn't even know that existed. I'm not sure I trust such IDs to survive > intensive editing by newbies who can delete an object then add it > with

Re: [Tagging] Feature Proposal - RFC - protection_class=* (Words, not numeric codes)

2020-04-06 Thread Andrew Davidson
On 6/4/20 9:59 pm, Kevin Kenny wrote: Can we work around the problem simply by allowing 'protection_class' to apply to 'boundary=national_park' as well as 'boundary=protected_area' and asserting that the default value of 'protection_class' for 'national_park' shall be assumed to be 2 (surely the

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Marc M.
Le 06.04.20 à 18:23, Frederik Ramm a écrit : > Only way I would see this working is a "gamification" thing QA tools can also warn "this poi hasn't been changed in a long time, maybe you wish to review/resurvey it" Some ppl like to have an "up-to-date area", and not rely on luck to systematically

Re: [Tagging] Can highway=cycleway be limited to MTB?

2020-04-06 Thread Marc M.
Le 06.04.20 à 18:13, Florimond Berthoux a écrit : > If a path can only be used by mtb I think access=no mtb=designated can > be used (I understand that goes against path multi usage definition, > but why access tags exist if we cannot use it ?) I never see sutch sign. but if it exist, why not.

Re: [Tagging] Feature Proposal - RFC - Urgent Care

2020-04-06 Thread Marc M.
the wording is one issue but I was more interested in meaning. is it the same meaning ? if not please explain the difference telling me "tag as you wis" is not an interesting answer for the quality Le 06.04.20 à 13:11, Ty S a écrit : > Honestly, reservation is definitely the wrong wording here,

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
Hi Frederik, I agree 100%. The proposal thesis is that "Key level last updated date meta data" within OSM, might be a useful ingredient for facilitating better data quality maintenance on data which tends to go stale. Best regards, Stuart On Mon, 6 Apr 2020 at 18:24, Frederik Ramm wrote:

Re: [Tagging] Can highway=cycleway be limited to MTB?

2020-04-06 Thread brad
I don't think we want or need an mtb= tag. Even though we don't need a path=mtb tag, I'd be OK with it.  It would be a shortcut instead of adding some of the other tags.  I don't think routers for cycle touring should rely on this though. I live in a popular mtb location (Colorado, USA), and I

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Frederik Ramm
Hi, On 06.04.20 17:25, Paul Allen wrote: > Expecting mappers to wander around checking refill points > is expecting far too much.  Expecting people looking for refill points > to tap a "this place still does refills" is expecting far too much. Only way I would see this working is a

Re: [Tagging] Can highway=cycleway be limited to MTB?

2020-04-06 Thread Florimond Berthoux
For the record (though I understand that English track meaning doesn't fit well) leisure=track can be used with highway=*, 5% of them highway=path wiki page says : «This includes walking and hiking trails, bike trails and paths, horse and stock trails, mountain bike trails as well as combinations

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
Hi Paul, Maybe together we can come up with something new ... maybe not ... based on my admittedly limited knowledge of OpenStreetMap, the issue of stale data seems to be endemic for some types of data ... and not just a refill app issue. Adding a couple of extra bytes to the data structure for

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Paul Allen
On Mon, 6 Apr 2020 at 16:10, European Water Project < europeanwaterproj...@gmail.com> wrote: > > Yep. Because, as others have pointed out, implementing such a scheme > in OSM is hard. Not just technically hard, but "overcoming all the > people > who insist OSM MUST NOT do this"

Re: [Tagging] Feature Proposal - RFC - protection_class=* (Words, not numeric codes)

2020-04-06 Thread Joseph Eisenberg
> one tag is supported for displaying "one kind of thing" That's not at all the same as "One feature, one OSM element". The basic principle is that you don't create 2 different database objects for the same thing: you don't map a single school as a node and as an area (closed way) around the

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
Hi Paul, Yep. Because, as others have pointed out, implementing such a scheme in OSM is hard. Not just technically hard, but "overcoming all the people who insist OSM MUST NOT do this" hard. Can we focus our discussions to the technical aspects of different solutions for

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Paul Allen
On Mon, 6 Apr 2020 at 15:17, Marc M. wrote: > Le 06.04.20 à 15:09, Paul Allen a écrit : > > in your own app > > so every app 'll have it's own lascheck database ? > Those that want to know about last check dates. so when I do my annual check-up of all the POIs in my comfort zone, > It 'll need

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Marc M.
Le 06.04.20 à 15:09, Paul Allen a écrit : > in your own app so every app 'll have it's own lascheck database ? so when I do my annual check-up of all the POIs in my comfort zone, It 'll need going into the different related quality monitoring applications them to mark that it's up to date so that

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
Hi Paul, Thank you for your comments. You may well be right in your analysis Recording a fountain out of order through the app is possible. I already count each fountain/refill cafe click per fountain in a server side mysql database (yes, I know osm numbers are mutable). . This being said,

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Paul Allen
On Mon, 6 Apr 2020 at 08:33, European Water Project < europeanwaterproj...@gmail.com> wrote: > > In order to maintain/improve the data quality for our mobile application, > I have been thinking about ways we can efficiently verify data for refill > points for drinking water at fountains

Re: [Tagging] Feature Proposal - RFC - protection_class=* (Words, not numeric codes)

2020-04-06 Thread Martin Koppenhoefer
Am Mo., 6. Apr. 2020 um 14:00 Uhr schrieb Kevin Kenny < kevin.b.ke...@gmail.com>: > That would also allow us to address Joseph Eisenberg's objection (in > the talk page on the WIki) that the proposal violates the 'one object, > one tag' principle. there is no such principle (AFAIK a principle

Re: [Tagging] Feature Proposal - RFC - protection_class=* (Words, not numeric codes)

2020-04-06 Thread Joseph Eisenberg
It's true that not all "National Parks" are IUCN level 2, though most IUCN level 2 features appear to be National Parks, and of the 1700 boundary=national_park features which are also tagged with protect_class, 3/4 are protect_class=2, only 1 out of 4 has a different number. See

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
I copied the draft note to a wiki page ... to facilitate the discussion regarding per key last update date meta data. https://wiki.openstreetmap.org/wiki/Rarely_verified_and_third-party_data_staleness_in_OpenStreetMap Best regards, Stuart On Mon, 6 Apr 2020 at 11:56, European Water Project <

Re: [Tagging] Feature Proposal - RFC - protection_class=* (Words, not numeric codes)

2020-04-06 Thread Kevin Kenny
On Mon, Apr 6, 2020 at 6:37 AM Andrew Davidson wrote: > > On 6/4/20 9:23 am, Joseph Eisenberg wrote: > > The only thing that the proposal page still needs is a couple more > > detailed definitions for some of the tags. > > Maybe not. A quick read finds this statement: > > protect_class=2 will be

Re: [Tagging] Feature Proposal - RFC - protection_class=* (Words, not numeric codes)

2020-04-06 Thread Joseph Eisenberg
Andrew, would you please repeat this analysis with all features tagged "protect_class=2" which have a wikidata tag? I suspect that many of those will not match according to Wikidata. On 4/6/20, Andrew Davidson wrote: > On 6/4/20 9:23 am, Joseph Eisenberg wrote: >> The only thing that the

Re: [Tagging] Feature Proposal - RFC - Refugee Site Location

2020-04-06 Thread Joseph Eisenberg
> QUESTION : Oukasz was wondering if the tag refugee_site=yes does necessarily > have to be associated with place or landuse? As mentioned, it would be fine to use a new "key" like "refugee_site" for a feature that is only mapped as nodes, but if it is going to be used on areas it's important to

Re: [Tagging] Feature Proposal - RFC - Urgent Care

2020-04-06 Thread Ty S
Honestly, reservation is definitely the wrong wording here, and so is emergency (see talk page of proposal) however, tag as you wish. From: Marc M. Sent: Monday, April 6, 2020 2:27 AM To: tagging@openstreetmap.org Subject: Re: [Tagging] Feature Proposal - RFC -

[Tagging] Feature Proposal - RFC - Refugee Site Location

2020-04-06 Thread Manon Viou
Dear all, Thank you Joseph and Stuart for your very valuable comments, these exchanges are very constructive and personally I learn a lot about how OSM database works. I agree with both of you, it seems more appropriate to use a

Re: [Tagging] Feature Proposal - RFC - protection_class=* (Words, not numeric codes)

2020-04-06 Thread Andrew Davidson
On 6/4/20 9:23 am, Joseph Eisenberg wrote: The only thing that the proposal page still needs is a couple more detailed definitions for some of the tags. Maybe not. A quick read finds this statement: protect_class=2 will be tagged as boundary=national_park (de facto) This is a problem because

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
Hi Marc, I am convinced survey:date is not the solution for maintaining large swathes of OpenStreetMap data. Nor do I think putting a survey date at a per tag level is realistic or workable. Best regards, Stuart On Mon, 6 Apr 2020 at 12:24, Marc M. wrote: > Hello, > > Le 06.04.20 à 09:31,

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Marc M.
Hello, Le 06.04.20 à 09:31, European Water Project a écrit : > I have been thinking about ways we can efficiently verify data here's my workflow : - once a year, I query all poi (bar, restaurant, shop) within my comfort zone, and check all tag again. if nothing change, I update the tag

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
Dear Martin, A date uses 3-4 bytes of memory. Just for brainstorming purposes, what would be the total database size inflation if all keys on all nodes, ways and relations in OpenStreetMap had 4 extra bytes of date meta data ? Best regards, Stuart On Mon, 6 Apr 2020 at 11:42, Martin

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Martin Koppenhoefer
Am Mo., 6. Apr. 2020 um 10:13 Uhr schrieb Frederik Ramm : > Secondly, this is a problem shared by all the "last survey" approaches: > You're standing the logic on its head. You're essentially saying: "If > the object has NOT changed in reality, please DO change it in OSM" (by > updating the

Re: [Tagging] Feature Proposal - RFC - Urgent Care

2020-04-06 Thread Marc M.
Le 05.04.20 à 17:06, Ty Stockman a écrit : > https://wiki.openstreetmap.org/wiki/Proposed_features/Urgent_care > The urgent care tag is used at, for example, clinics, that offer walk-in > service isn't "walk-in" already included in reservation=no ? and/or with emergency=yes ?

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
On Mon, 6 Apr 2020 at 10:14, Frederik Ramm wrote: > Dear Frederick, > > may I suggest that you choose a personal email address for participating > in mailing lists. It feels really strange to address a message to > "europeanwaterproject". I don't want to talk with "a project", I want to > talk

Re: [Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread Frederik Ramm
Hello Stuart, may I suggest that you choose a personal email address for participating in mailing lists. It feels really strange to address a message to "europeanwaterproject". I don't want to talk with "a project", I want to talk with a person. On 06.04.20 09:31, European Water Project wrote: >

[Tagging] Rarely verified and third-party data staleness in OpenStreetMap

2020-04-06 Thread European Water Project
Dear All, I hope this note is not too off topic. In order to maintain/improve the data quality for our mobile application, I have been thinking about ways we can efficiently verify data for refill points for drinking water at fountains participating refill cafes, bars and other establishments.

Re: [Tagging] Can highway=cycleway be limited to MTB?

2020-04-06 Thread Andrew Harvey
On Mon, 6 Apr 2020 at 03:27, Adam Franco wrote: > Thank you for putting together this highway=path + path=mtb suggestion, > Andrew. This is first suggestion on this thread that has felt like a good > direction forward. First and foremost, mountain bike trails are paths, > anything further is a