[OSM-talk] [Talk-us] A new tracing layer for TIGER 2013

[Clifford Snow]

Eric,
One other issue. Here is a link,
https://www.dropbox.com/s/v1je9m490c0yns4/Why%20Flagged.png, to an area,
http://osm.org/go/WJIDU~lZs-- near me. You can ignore the crazy tiger data
on the right! However, notice the streets, 114th St SW, 115th St SW, 8th Pl
W and 8 Ave W. There all all existing, but were flagged as being outdated.
Is it because they are not exactly the same as the tiger data?

BTW, I really appreciate the work you are putting into helping us fix
streets along with Martijn's Battlegrid.

Clifford


On Sun, Dec 8, 2013 at 11:04 AM, Clifford Snow <clifford at snowandsnow.us>wrote:

> Eric,
> A big help would be to have an understanding of how ways are displayed on
> the overlay. I see different shapes and colors. What do they represent?
>
> I can help with the name expansion. I have a fair number of abbreviations
> that I've used in Washington State.
>
> BTW is your code at https://github.com/ericfischer/osm-tiger-update?
>
> Clifford
>
>
> On Sun, Dec 8, 2013 at 10:42 AM, Eric Fischer <enf at pobox.com> wrote:
>
>>  As was just announced on the MapBox blog (
>> https://www.mapbox.com/blog/openstreetmap-tiger/) there is a new
>> OpenStreetMap tracing layer for 2013 Census Bureau TIGER map data in the US.
>>
>> The main reason for it, aside from incorporating this year's TIGER
>> changes, is to provide different features at different zoom levels:
>>
>> * At zoom 16 and up, like the TIGER 2012 layer, it shows all the current
>> TIGER roads so that they can be compared with OpenStreetMap and the
>> discrepancies corrected.
>>
>> * At zoom 12-15, it shows only the TIGER roads that have been changed
>> since the import in 2006, with the current state of OpenStreetMap masked
>> out, so you see only the places where TIGER has been changed (and
>> presumably corrected) but OpenStreetMap hasn't. This should give an easier
>> overview of what places need attention.
>>
>> * At zooms below 12, like the Battle Grid, it also shows discrepancies
>> between OSM and TIGER, but simplified because the individual streets are
>> too small to draw in detail. It's a static calculation that will get
>> periodically refreshed, but not instantly, as OpenStreetMap changes.
>>
>> The tile URL is http://{switch:a,b,c}.
>> tiles.mapbox.com/v3/enf.ho204tap,enf.ho20a3n1,enf.game1617/{zoom}/{x}/{y}.png<http://tiles.mapbox.com/v3/enf.ho204tap,enf.ho20a3n1,enf.game1617/%7Bzoom%7D/%7Bx%7D/%7By%7D.png>but as the comma-separated list in the URL suggests, it is actually a
>> composite of three layers that work together:
>>
>> TIGER streets/changes:
>> https://a.tiles.mapbox.com/v3/enf.ho204tap/page.html?secure=1#14/40.3648/-86.8654
>> OpenStreetMap mask:
>> https://a.tiles.mapbox.com/v3/enf.ho20a3n1/page.html?secure=1#14/40.3648/-86.8654
>> Low zooms:
>> https://a.tiles.mapbox.com/v3/enf.game1617/page.html?secure=1#11/40.3648/-86.8654
>>
>> In the pull request for iD (https://github.com/systemed/iD/pull/2010)
>> Ian Dees pointed out that the abbreviations in street names should expanded
>> and that it would be good to also include house numbers. I'll be updating
>> the vector data with expanded names in the next few days and will add the
>> house numbers as soon as I can. Please let me know if you see anything else
>> that ought to be better.
>>
>> Eric
>>
>> _______________________________________________
>> Talk-us mailing list
>> Talk-us at openstreetmap.org
>> https://lists.openstreetmap.org/listinfo/talk-us
>>
>>
>
>
> --
> Clifford
>
> OpenStreetMap: Maps with a human touch
>



-- 
Clifford

OpenStreetMap: Maps with a human touch
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