Is a map "fake" if it's incorrect? There is *no such* thing as a 100% correct map, they don't exist. Any map you buy commercially is likely to be outdated before it's printed.
Is OSM more or less accurate than the alternatives? It varies. Enthusiasts will sometimes eagerly map changes on the ground. A newly opened lightrail? If there's enthusiasts around, it will be there - way before any commercial map has added it. "Armchair mappers" will sometimes use air photos and other sources to map areas, without having local knowledge. But to some extent, this also happens with commercial maps. They are often made from photos nowadays, and both humans and software might interpret them wrong. I believe OSM is pretty decent, but 100% correct? Of course not. - Vegard On Mon, Dec 30, 2019 at 03:41:47PM +0300, 80hnhtv4agou--- via talk wrote: > > yes i used a phone to check it out, > > but if the tracers are using old images, who to say the rest of the world is > correct. > > rivers, streams, trails, sidewalks dry flood ponds bus stops, gates, fences, > billboards phone towers, ect. > > From: Oleksiy Muzalyev > Sent: Monday, December 30, 2019 6:00 AM > To: 80hnhtv4a...@bk.ru > Cc: OSM Talk > Subject: Re: [OSM-talk] is OSM a fake map. > > You can make the map quite precise and up to date by employing a GPS tracker. > Here is, for example, a 431 km GPS trace which I recorded with the Garmin 35 > eTrex device (no affiliation) earlier this month in Mexico from inside the > bus: https://connect.garmin.com/modern/activity/4330126920 . This GPS trace > is also published to the OSM map. > > Garmin 35 uses the EGNOS, the European Geostationary Navigation Overlay > Service, a satellite based augmentation system, in Europe, and the WAAS, the > Wide Area Augmentation System, in the North America. It is capable to record > a GPS trace for about 20 hours on a pair of cheap alkaline AA batteries even > from inside the train, bus, car, or on bicycle. > > It is possible to build a DIY, do-it-yourself, GPS tracker from and Arduino > type micro-controller [1] and a 15 USD GPS module [2]. The total cost would > be about 30.- USD. There are videos on Youtube on how to do it. > > So one can record a GPS trace while cycling around a new building or a park, > then publish the GPS trace to the OSM map, and finally to map them precisely > and up to date in an editor by the GPS traces, even if they are not on > satellite images yet. > > [1] > https://www.banggood.com/Wholesale-ATMEGA328-328p-5V-16MHz-Pro-Mini-PCB-Module-Board-p-68534.html > [2] > https://www.banggood.com/UBLOX-NEO-M8N-BN-880-Flight-Control-GPS-Module-Dual-Module-Compass-p-971082.html > > Best regards, > Oleksiy > > > On 12/29/19 22:46, 80hnhtv4agou--- via talk wrote: > >i am talking about in my own back yard, > > > >i just hiked a mile down the street to check it out, it was not the same > >when i was there in > > > >1985, but it did not match the mapper either. > > > >to that end, bing is 2015 or 16, > > > >as an example the county forest preserve map took from osm, so mappers have > >copied that and it is wrong > > > >and how do you see thing under the trees unless you walk it. > > > >so who is to say that any of OSM is not fake. > > > >if all mappers are tracing. > > > >From: john whelan > >Sent: Sunday, December 29, 2019 1:08 PM > >To: 80hnhtv4a...@bk.ru > >Cc: OSM Talk > >Subject: Re: [OSM-talk] is OSM a fake map. > > > >I'm fairly lucky in that in the last three years nothing much has changed > >locally. The highways have stayed much the same. Most buildings are still > >there. > > > >If you use Bing to add things then realistically it fills in gaps in the > >map. If you delete things because they are not in Bing that is a quite > >different matter. > > > >Does it matter if the mapper lives more than five miles away? Well I've > >mapped places a few thousand miles away but they were places I knew very > >well as I used to live there. > > > >I don't think OSM will ever be completely accurate. Having said that it is > >still very useful for many purposes. > > > >Cheerio John > >On Sun, 29 Dec 2019, 12:31 80hnhtv4agou--- via talk, < > >talk@openstreetmap.org > wrote: > >>it say in some wiki. to correct what you find wrong on the map, > >> > >>not one “other nearby users” is a current mapper, and all edits in a 5 mile > >>radius are not coming from an on the ground > >> > >>mappers in my area but 20 miles + away and are tracing from bing, and the > >>images on bing in my local area are from > >> > >>2016 so i do not see how the map locally is true, and it is not easy to go > >>and see every thing they have done, > >> > >>no car or bike. > >> > >>every thing i do is backed up by me on mapillary, and in traces. > >>_______________________________________________ > >>talk mailing list > >>talk@openstreetmap.org > >>https://lists.openstreetmap.org/listinfo/talk > > > > > >_______________________________________________ > >talk mailing list > >talk@openstreetmap.org > >https://lists.openstreetmap.org/listinfo/talk > > > > > ---------------------------------------------------------------------- > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk > _______________________________________________ > talk mailing list > talk@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk -- - Vegard Engen, member of the first RFC1149 implementation team. _______________________________________________ talk mailing list talk@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk
