Hi Simon, Rory, Guillaume, Frederik, Martin, Mikael, Thank you for your input - that's very helpful and appreciated. Let me try a digest reply. Overall, I'm thinking of something much simpler than displaying maps. Overall, there's (at least) two different areas: (1) Traces (2) Tags / resolving bugs
** On traces ** > On 29 June 2016 at 13:41, Simon Poole wrote: In general I'm not convinced that raw GPS tracks are of a lot of use without additional information in areas that might not have a well established road network, ... It may not be without additional information - see next answer. > Who is "we" in this context? E.g. I'm working with teachers in Ghana, where mentors travel to schools/colleges to give support. They do have tablets/smart phones with GPS. GPS Logger probably comes closest to what we could use ( http://code.mendhak.com/gpslogger/), mainly because it offers to auto upload a trace. So for us, that could work, because we have a set of known users (and can receive traces via dropbox/email/etc). We tried OSMAnd previously, but because GPX cannot be sent automatically, it was too tricky. (Similarly for OSMTracker.) We're yet to try GPS Logger. But suppose we were to work with users less well known to us: *Scenario A ("friends of friends" contributions): *For other users, GPS Logger can also upload to OSM. Suppose we'd ask friends in certain towns to use the tool, as a "semi-anonymous" mapping campaign in that town, we'd then have to find those traces on OSM (or at least be notified that a relevant trace has come in). *How would you do this? It doesn't seem as if you can search for traces in particular areas?* *Scenario B (crowd contributions): *Something similar to OSM Logger, but that could switch on automatically (e.g. when people are driving with GPS enabled). "We're short of maps in this area? Do you want to help?" If the users taps yes, then a trace is recorded and submitted (anonymously). This could be stand alone, or (to provide an incentive to the user) be integrated into OSMAnd/map.me etc. Perhaps (if integrated into an app) the data would not be that useful anyway (as Simon suggested), as you don't know what kind of track the user is on. Stand-alone, you could ask the user some questions afterwards: Major road yes/no, tarmac yes/no, etc. On 29 June 2016 at 13:43, Frederik Ramm wrote: > Your user's contributions would be immensely more valuable if there was a way for them to at least record the information whether they're currently on a path or travelling cross-terrain. > (Sometimes this can be guessed from the speed of movement but not always.) > Agreed! On 29 June 2016 at 13:34, Guillaume AMAT wrote: > You're searching something I plan to implement in MapContrib (but I don't > know when...), see https://github.com/MapContrib/MapContrib/issues/148. > Is that issue the exact need of yours? > Yes, I think the issue above is similar to the way GPS Logger works. I'll have a look at the app, and will comment if I have a suggestion. Also see point about 'tags' below. Rory, maps.me seems to be more aimed at using maps - certainly the site doesn't foreground contributions. It's similar with OSMAnd - it can display/add bugs/notes, and e.g. display the 'fixme' tag, but the main purpose is to use maps. ** On tags * * Apart from traces, it may also be helpful to fix tags / collect other information. Here are some thoughts: *(A) Location validation / resolving issues. *We've got a list of education institutions, which we think is accurate on the whole. However, there are also some errors. It would be great for us to have an app that could validate locations (as a "friend sourcing" or "crowd sourcing" exercise). You upload a set of locations into the app, and (over time, as a user travels to a location) the app asks: "Are you now near XYZ school? Yes/no". Over time, that would allow us to validate a large data set. Similarly, extra information about map issues could be collected. E.g. Vespucci also notifies you about nearby map issues, which is great. However, on the whole the app has a different audience from what I have in mind. So just the notification part of Vespucci, with the ability for the user to respond. *(B) Street names (and other POIs).* In some places there are roads, but they don't have names (when the local roads do have street signs). Users may be willing to contribute street names. Similarly, POIs could be added in this way. E.g. the POI contribution in OSMAnd is useful, but ideally an app would only have the "POI submission" feature. Either the app shows the OSM tile or perhaps just a list of local POIs (with geo-intent to visualise in other app). The user types name and POI type, and data is submitted (with GPS accuracy). Optionally, the user might answer some more questions, depending on the POI type (like opening hours, etc). Also, perhaps the data is not added to OSM automatically, but perhaps to a "crowd layer", where map editors then transfer the data onto OSM. The last suggestion is perhaps similar to https://github.com/hotosm/Geo-Data-Collect. That app can of course work with any ODK server, and one could set up a server to collect data for OSM. It may be possible to construct a comprehensive ODK form to cover a range of POIs, though for the general purpose of POI collection, a dedicated app may be simpler and more user friendly. (C.f. Martin's suggestion.) Mikael - thanks, I'll have a look! Just some more thoughts - thanks for the responses so far!! Bjoern
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