It would be nice if I could find limit the "tasks" to an area I'm really familiar with or that I have surveyed. I know Joost has a map somewhere that shows the differences. But I might easily fix all the problems in my town without leaving the computer right now. I know this is not how MapRoulette works, but would be nice for this task.
wanted to write something about "mapping based on imagery", but I want to keep it decent :-) m. On Tue, Nov 14, 2017 at 12:00 PM, Ben Abelshausen <ben.abelshau...@gmail.com> wrote: > Marc, > > Thanks for the not-so-positive feedback. > > I'm a bit disappointed by the quality of wegenregister as a comparison basis > (but I should have known better by now) but I'm still conviced about the > general idea. In the beginning we had another subset of the data with only > what we are relatively sure of coming from wegenregister but we noticed that > the classifications don't make sense all the time. In the end we took all > roads that had a name; at that point we discovered there are a lot of > driveways in there with a name (ouwch!). > > It all comes down to: trying to detect missing stuff in OSM and I think > there are some very good examples in the data for example these: > http://maproulette.org/map/2789/3111729? > http://maproulette.org/map/2789/3108600? > > We also ask **not to map when not sure** so if you look at the instruction > you will see we don't ask to copy the data but to map whatever is missing, > by the same standards as usual. If that's not possible remotely then don't > map. > > We also shouldn't copy the streetnames except when we are sure it's an > actual road. And yes sometimes that means a guestimate of what's a driveway, > but how's that different from what we've been doing all along based on > imagery? > > If anyone else has questions, feel free! Also, don't map when you're not > sure! It's better not to have data, compared to having bad useless data. > > Cheers, > Ben > > On Tue, Nov 14, 2017 at 9:37 AM, Marc Gemis <marc.ge...@gmail.com> wrote: >> >> I've tried a couple of "tasks". >> I found it pretty hard to fill in the proper road type without being >> familiar with the local situation. >> The fact that Wegenregister adds a name to each and every long drive >> way is not going to help with the OSM data quality. >> >> So I gave up and went back to processing my surveys. >> >> m. >> >> On Tue, Nov 14, 2017 at 9:29 AM, joost schouppe >> <joost.schou...@gmail.com> wrote: >> > Hi, >> > >> > Ben and I have been working on "the road completion" project for quite >> > some >> > time now. The idea is to build a toolchain that harvests any open data >> > source on road networks, and turn it into a list of "possibly missing >> > roads >> > in OSM". >> > >> > For a project overview, look here: >> > http://www.osm.be/2017/01/06/en-project-road-completion.html >> > >> > Because it should be scalable and easy to adapt, we started with very >> > simple >> > analysis methods. The idea is to make something simple that is quick to >> > set >> > up and easy to extend. The repository is on Github [1] >> > >> > >> > We started of with Wegenregister, an extensive road dataset for >> > Flanders. A >> > first selection uses only roads that should be easy to map with just GRB >> > and >> > aerial imagery. Because feedback is essential (to correct the many >> > mistakes >> > in the source data, to fine-tune our processes, to avoid having a road >> > seem >> > missing until someone uncritically adds it), we are using Maproulette to >> > coordinate task completion. Instructions are available on the wiki [2] >> > >> > >> > We're presenting this project at the Informatie Vlaanderen Trefdag. It's >> > a >> > big thing that we got ourselves invited there at all! [3] >> > >> > If you want to help, start the task, have a look at the Github, improve >> > the >> > documentation, find another dataset to use, etc! >> > >> > 1: https://github.com/osmbe/road-completion >> > 2: >> > >> > https://wiki.openstreetmap.org/wiki/WikiProject_Belgium/Road_completion_project/Instructions >> > 3: https://overheid.vlaanderen.be/trefdag-informatie-vlaanderen >> > >> > >> > >> > -- >> > Joost Schouppe >> > >> > _______________________________________________ >> > Talk-be mailing list >> > Talk-be@openstreetmap.org >> > https://lists.openstreetmap.org/listinfo/talk-be >> > >> >> _______________________________________________ >> Talk-be mailing list >> Talk-be@openstreetmap.org >> https://lists.openstreetmap.org/listinfo/talk-be > > > > _______________________________________________ > Talk-be mailing list > Talk-be@openstreetmap.org > https://lists.openstreetmap.org/listinfo/talk-be > _______________________________________________ Talk-be mailing list Talk-be@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-be
