Users in Algeria were asked to map motorway surface in tunnels, based on aerial imagery.
It become marked as surface=ground, see https://www.openstreetmap.org/way/490378286/history adding surface to motorways is of so dubious utility that for example StreetComplete is not asking to specify such surface if missing. Overall effort/effect ratio is really bad here and effect may be more negative than positive. I agree that mapping surface on more minor roads is useful and in fact I am right now coding a better support for that in StreetComplete (surface overlay). But mapping surface of motorways seems to not be a good use of time, and asking others to do this is quite surprising. Hmmmm, maybe I should implement "motorways are assumed to be concrete/asphalt" in StreetComplete surface overlay. Feb 3, 2023, 10:23 by walker.t.brad...@gmail.com: > I use routing to measure accessibility to schools and health clinics here in > west Africa. I have to make sure that my models also work in South Asia. > Having the surface tag attributed makes processing infinitely easier because > I don’t have to adjust my default values based on country. Across Africa, > and south Asia, many secondary, primary, trunk roads are not paved. Knowing > which ones are and which ones aren’t is important to me. > > I understand that having tagging like this does not benefit you, but does it > hurt you? If it doesn’t hurt you and it may help somebody else is there a > problem? > > Even outside the routing world, surface tags can be used to estimate the > amount of noise coming from a roadway. for example, Concrete is way louder > than asphalt. Such data could be used to estimate the noise pollution levels. > > This is very analogous to some of the attributes that one can find on > schools. Does the school have running water? Does the school have bathrooms? > None of these apply in California, but all of them apply elsewhere in the > world. > > > > >> On Feb 3, 2023, at 03:25, Brian M. Sperlongano <zelonew...@gmail.com> wrote: >> >> >> I see that despite this discussion, TomTom is proceeding with its quixotic >> quest to get mappers to tag surface tags on motorway, just now in other >> countries: >> >> https://maproulette.org/browse/challenges/37540 >> >> Would you care to inform the community what it is that you're trying to >> accomplish here? >> >> On Mon, Jan 30, 2023 at 12:49 PM David Salmon <>> david.sal...@tomtom.com>> >> > wrote: >> >>> >>> Hi All, >>> >>> >>> >>> >>> >>> Thank you for the discussions and pointers. I’ve disabled the challenge for >>> now and will re-evaluate with the team. >>> >>> >>> >>> >>> >>> Much appreciated, >>> >>> >>> David >>> >>> >>> >>> >>> >>> >>> >>> From:>>> Brian M. Sperlongano <>>> zelonew...@gmail.com>>> > >>> >>> Sent:>>> Friday, January 27, 2023 4:04 PM >>> >>> To:>>> David Salmon <>>> david.sal...@tomtom.com>>> > >>> >>> Cc:>>> Matthew Whilden <>>> matthew.whil...@gmail.com>>> >; Eric H. >>> Christensen <>>> e...@aehe.us>>> >; Joseph Eisenberg <>>> >>> joseph.eisenb...@gmail.com>>> >; talk-us <>>> talk...@openstreetmap.org>>> > >>> >>> Subject:>>> Re: [Talk-us] New MapRoulette Challenge - Add Surface to >>> Highways >>> >>> >>> >>> >>> >>> >>> >>> >>> You don't often get email from >>> zelonew...@gmail.com>>> . >>> Learn why >>> this is important <https://aka.ms/LearnAboutSenderIdentification> >>> >>> >>> >>> If all you care about is paved vs unpaved distinctions for routing, you can >>> safely delete the challenge, because all highway=motorway in California are >>> paved. >>> >>> >>> >>> >>> >>> On Fri, Jan 27, 2023, 3:12 PM David Salmon <>>> david.sal...@tomtom.com>>> >>> > wrote: >>> >>> >>>> >>>> Hi All, >>>> >>>> >>>> >>>> >>>> >>>> Thank you for the questions. I checked with a couple of colleagues and >>>> Surface is used in some applications if users want to avoid Unpaved roads >>>> during a route. >>>> >>>> >>>> >>>> >>>> >>>> I don’t sense a consensus yet on the approach of using Paved versus a >>>> specific surface value. Would you prefer that I make the challenge Not >>>> Discoverable until there’s time to conclude the discussion? >>>> >>>> >>>> >>>> >>>> >>>> Alternately, if there’s a topic of higher priority or interest that you’d >>>> like to see created as an editing challenge or existing challenge where >>>> TomTom could support, I’m open to suggestions. >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> All the best, >>>> David >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> From:>>>> Matthew Whilden <>>>> matthew.whil...@gmail.com>>>> > >>>> >>>> Sent:>>>> Wednesday, January 25, 2023 2:01 PM >>>> >>>> To:>>>> Eric H. Christensen <>>>> e...@aehe.us>>>> > >>>> >>>> Cc:>>>> Joseph Eisenberg <>>>> joseph.eisenb...@gmail.com>>>> >; >>>> David Salmon <>>>> david.sal...@tomtom.com>>>> >; >>>> >>>> talk...@openstreetmap.org >>>> >>>> Subject:>>>> Re: [Talk-us] New MapRoulette Challenge - Add Surface >>>> to Highways >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> >>>> You don't often get email from >>>> matthew.whil...@gmail.com>>>> . >>>> >>>> Learn why this is important <https://aka.ms/LearnAboutSenderIdentification> >>>> >>>> >>>> >>>> If you want to use the data for non-routing questions I'm sure specificity >>>> can help. Like, imagine I want to estimate road maintenance costs by >>>> latitude or something of that shape. >>>> >>>> >>>> >>>> >>>> >>>> Matt >>>> >>>> >>>> >>>> >>>> >>>> On Wed, Jan 25, 2023 at 10:28 AM Eric H. Christensen via Talk-us <>>>> >>>> talk...@openstreetmap.org>>>> > wrote: >>>> >>>> >>>>> >>>>> >>>>> >>>>> ------- Original Message ------- >>>>> On Wednesday, January 25th, 2023 at 11:35, Joseph Eisenberg <>>>>> >>>>> joseph.eisenb...@gmail.com>>>>> > wrote: >>>>> >>>>> >>>>> > Why do we need surface=asphalt vs surface=concrete for >>>>> highway=motorway? >>>>> > >>>>> > Does this make a significant difference for any users? >>>>> > >>>>> > I can certainly see the value of adding unpaved surface values for >>>>> other classes of roads, but all motorways in the USA (and likely >>>>> worldwide) will be paved >>>>> >>>>> I can see that being an assumption but unless you verify that to be true >>>>> you can't just summarily add that kind of data to the set. >>>>> >>>>> Does it make a difference? I'm not sure. There are definitely friction >>>>> coefficient differences between the two surfaces and I'd be willing to >>>>> bet that one would be more efficient to travel across than the other. >>>>> Perhaps routing engines could use this information to provide an even >>>>> better, more efficient route. Of course, that is just an idea. >>>>> >>>>> R, >>>>> Eric >>>>> >>>>> _______________________________________________ >>>>> Talk-us mailing list >>>>> >>>>> talk...@openstreetmap.org >>>>> >>>>> https://lists.openstreetmap.org/listinfo/talk-us >>>>> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openstreetmap.org%2Flistinfo%2Ftalk-us&data=05%7C01%7CDavid.Salmon%40tomtom.com%7C872b38297c7f40a16f8008db00a9fa93%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C638104502387667628%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=gVMqJeathm4pviL9HoCKbcP7hHbawS4rS2e2n2Ei8HI%3D&reserved=0> >>>>> >>>>> >>>>> >>>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> Talk-us mailing list >>>> >>>> talk...@openstreetmap.org >>>> >>>> https://lists.openstreetmap.org/listinfo/talk-us >>>> <https://eur02.safelinks.protection.outlook.com/?url=https%3A%2F%2Flists.openstreetmap.org%2Flistinfo%2Ftalk-us&data=05%7C01%7CDavid.Salmon%40tomtom.com%7C872b38297c7f40a16f8008db00a9fa93%7C374f80267b544a3ab87d328fa26ec10d%7C0%7C0%7C638104502387667628%7CUnknown%7CTWFpbGZsb3d8eyJWIjoiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3000%7C%7C%7C&sdata=gVMqJeathm4pviL9HoCKbcP7hHbawS4rS2e2n2Ei8HI%3D&reserved=0> >>>> >>>> >>>> >>>> >> _______________________________________________ >> Tagging mailing list >> Tagging@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/tagging >>
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