[Talk-us] Comparing Tiger 2017 dataset with OSM in a automated way.

Ian Dees ian.dees at gmail.com
Wed Oct 11 15:22:56 UTC 2017

It would be interesting to see what differences CYGNUS would turn up. What
would the output of CYGNUS be?

I put together the TIGER 2017 layer that's in the editors right now. I'll
work on writing up how I did it later today.

Basically: I used tiger-tiles (https://github.com/iandees/tiger-tiles) to
generate a vector tiles database with expanded road names from TIGER 2017.
Then I downloaded an osm-qa-tiles (https://osmlab.github.io/osm-qa-tiles/)
file for the United States and ran osmlint's tigerDelta (
https://github.com/osmlab/osmlint/tree/master/validators/tigerDelta) to
find the segments that had different geometry. The output was then ran
through Tippecanoe to generate a vector tileset and posted to Mapbox as the
low zoom red features.

On Wed, Oct 11, 2017 at 4:03 AM, Badita Florin <baditaflorin at gmail.com>

> Hi, i wanted to ask if there will be interest around comparing TIGER 2017
> with what we have in OSM, using CYGNUS, in a automated way.
> http://www.openstreetmap.org/user/mvexel/diary/36746
> On top of cygnus, i have developed shgp2cygnus, were you can place any
> shapefile, any size, you provide a translation file, and, in the end, you
> get a list with all the ways that are in the TIGER dataset, but not in OSM.
> This would be something useful for the community ?
> I don`t know if somebody is already doing something similar, or what is
> the status ? Were can i read more ?
> I knoiw that the TIGER 2017 Overlay in JOSM shows in red the roads that
> are not in OSM, but are in TIger 2017.
> But I don`t know were to read more, and if the data is accessible to
> download directly, not just show as a WMS Layer.
> It will take around 7-14 days to process all USA”
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