[Imports] James City County, Va Imports

Clifford Snow clifford at snowandsnow.us
Sun Sep 6 23:49:09 UTC 2015


Jonah,

Some suggestions.

addr:state is not needed. A geospatial lookup will provide it. I suggest
dropping it.

I understand that you will be using a manual process to import the data.
Zip codes can be very large. You might want to consider breaking it up by
voting districts as was done with the NYC import and which we used for the
Kirkland WA import.

Does James City County have a persistent key for each address? If so adding
it to the import may be of future use.

Lastly, I would suggest using JOSM's "Map paint styles" Address Tag
Validator when importing addresses. It will help you spot mis-match from
address tags to street name tags. We found a number of errors in our
counties database using this tool.

Good luck,
Clifford

On Sun, Sep 6, 2015 at 2:35 PM, Jonah Adkins <jonahadkins at gmail.com> wrote:

> Hey OSM-ers.
>
> I'd like to propose an import of city-sourced GIS data for James City County, Va. (yes, that’s correct, James-City-County is the name!) The City GIS manager has given the data / license for this purpose. Barring any glaring errors, the last step will be to split up a few of them into more import-size chunks.
>
> all of the processing was done in QGIS - for the building addresses, i had 2 sources of addresses, the CAD address points, and the parcel polygon address. the parcel polygon address was added via spatial join. the CAD points, for the most part did not overlap the building polygons. if a parcel had multiple buildings and the points overlapped, i added those address in lieu of parcel address.
>
> of special note in this data was a large amount of ‘legal’ non-conforming usps addresses - meaning a lot of addresses had no street type, which was confirmed through multiple on the ground sources to be accurate.
>
> i've added a set of sample osm data in the github repo that has attributes mapped.
>
> github -> https://github.com/jonahadkins/jamescity-OSM-imports <https://github.com/jonahadkins/yorkcounty-OSM-imports>
> osm wiki ->https://wiki.openstreetmap.org/wiki/James_City_County_Buildings_Import <http://wiki.openstreetmap.org/wiki/City_of_York_County_Buildings/Address_Import>
>
> thanks
>
> -jonah
>
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