[Talk-in] Use MapRoulette to improve OSM - India data

Srihari Thalla thallasrihari at gmail.com
Fri Mar 31 16:55:49 UTC 2017


Thanks, Muzirian ;)

Can you help with mapping villages? You can start with your native
district. Here is what I did:

I picked up a district, Krishna, and made a total sweep and identified
villages that are not yet mapped. I placed a node with place=village tag. I
don't know the names of the villages, so I didn't put the name tag. I was
able to map 1000 villages.
Once it's completed, I have prepared the MapRoulette Challenge[1] to trace
roads in these villages and connect to the nearby highways.

Instead of the node[place=village], an area with landuse=residential can
also be made. But that is too tedious.

I don't know the names of the villages, but I hope we can tag them later,
probably using DataMeet data!

Do you have other thoughts?

[1] - http://maproulette.org/map/2460
[2] - https://www.openstreetmap.org/changeset/47320624
[3] - https://www.openstreetmap.org/changeset/47320992

On Fri, 31 Mar 2017 at 21:41 muzirian <muzirian at gmail.com> wrote:

> > I would really need help from others speeding this up. If anyone's
> interested, we can organise and work together.
> I can help with some work :P
>
> On Wed, Mar 29, 2017 at 6:04 PM, Srihari Thalla <thallasrihari at gmail.com>
> wrote:
>
> I have completed identifying unmapped villages in Krishna. There are 1174
> nodes and ways tagged with "place=village".
>
> I have made a Challenge in MapRoulette to trace roads and connect these
> villages with nearby highways. (We can trace houses later.)
>
> I need help with tagging the roads. I made the instructions to tag
> asphalt/good condition roads as "tertiary" and other non-asphalt roads as
> "unclassified".
> Since these roads connect villages with other major highways/town/other
> villages, the tags tertiary/unclassified seemed optimal.
>
> Identifying and tagging these unmapped villages took around 8 hours and
> spread across a week!
> At this rate, it might take several months for me to just tag Andhra
> Pradesh and Telangana.
>
> I would really need help from others speeding this up. If anyone's
> interested, we can organise and work together.
>
> [1] - http://maproulette.org/map/2460
> [2] - http://overpass-turbo.eu/s/nT8
> [3] - https://wiki.openstreetmap.org/wiki/Key:highway#Roads
>
>
> On Thu, 23 Mar 2017 at 23:42 Srihari Thalla <thallasrihari at gmail.com>
> wrote:
>
> I have added "place=village" nodes for villages in Krishna district (AP)
> traced on Bing imagery [1] [2]. I have only traced some parts of the
> district and the villages count grew to ~700 and probably doubles once I
> sweep thru the entire district. It took a couple of hours for mapping them
> (~350 in 2 changesets).
>
> At this rate, it would take several days to just identify unmapped
> villages and then map them and several weeks to trace roads to them!
>
> Any ideas on how we can speed this up? As Arun said, we should do it in
> sprints for this process to take off.
>
> Thoughts and ideas...
>
> [1] - https://www.openstreetmap.org/changeset/47103126
> [2] - https://www.openstreetmap.org/changeset/47096890
> [3] - http://overpass-turbo.eu/s/nIz
>
>
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