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atx-osg / atx-buildings

Importing Austin buildings and address data into OpenStreetMap
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add postcode tags #22

Closed cliffordsnow closed 8 years ago

cliffordsnow commented 8 years ago

Please hold off on the import until you have review with the community.

Thanks, Clifford

wilsaj commented 8 years ago

Hi Clifford.

I thought we were good to go with regard to community review. See the thread on import-us mailing list at: https://lists.openstreetmap.org/pipermail/imports-us/2015-September/000722.html

We do not have city or postcode tags because they were not part of the imported dataset.

cliffordsnow commented 8 years ago

On Sun, Nov 8, 2015 at 1:13 PM, Andy Wilson notifications@github.com wrote:

I thought we were good to go with regard to community review. See the thread on import-us mailing list at: https://lists.openstreetmap.org/pipermail/imports-us/2015-September/000722.html

We do not have city or postcode tags because they were not part of the imported dataset.

You might want to join us on the #osm-us irc channel. There seems to be some issues.

As for the Sep. message, I missed the lack of city and postcode. Did anyone else mention it?

Clifford

@osm_seattle osm_seattle.snowandsnow.us OpenStreetMap: Maps with a human touch

wilsaj commented 8 years ago

Alright, I'll hop on osm-us IRC - thank you for bringing it to our attention

almccon commented 8 years ago

I thought that city and postcode were considered optional in OSM, because they are usually easily determined using polygon intersections with admin boundaries, and because they arguably bloat the data.

cliffordsnow commented 8 years ago

Alan, For addresses within a city boundary, the city could easily be looked up. It is why we don't encourage addr:state tags. But many addresses just outside of the city limits still show the nearby city. Postcode shapefiles are best guesses since the UPS doesn't publish zip code boundaries. I've used Census zipcode shapefiles (ZCTAs) when I'm certain that the boundaries are clean to add zip codes to data. Unfortunately ZCTAs only give boundaries. Washington State has produced zipcode tables that include the city. I wonder if Texas has something similar. Worst case, pull the zipcodes for Austin and look up the city.

I agree that city and zipcodes do add to the database. Maybe at some point the data will be separated by layers to keep the database size more manageable. I can only hope it comes sooner rather than later.

One of these days we need to talk about Bellingham. My friends in MaptimeSEA are looking for someone else to sponsor their meetup so I can create one for Skagit, Island, San Juan, and Whatcom Counties.

BTW - I certainly hated to see this import stopped. I hope it doesn't discourage them from proceeding. I'm a big proponent of importing buildings and addresses. I believe the quality is much higher than having people manually enter each address. Plus it would never get done.

Clifford

On Sun, Nov 8, 2015 at 2:26 PM, Alan McConchie notifications@github.com wrote:

I thought that city and postcode were considered optional in OSM, because they are usually easily determined using polygon intersections with admin boundaries, and because they arguably bloat the data.

— Reply to this email directly or view it on GitHub https://github.com/atx-osg/atx-buildings/issues/22#issuecomment-154881926 .

@osm_seattle osm_seattle.snowandsnow.us OpenStreetMap: Maps with a human touch

wilsaj commented 8 years ago

Looks like we can only infer postcode but not city (see discussion on the imports list: https://lists.openstreetmap.org/pipermail/imports/2015-November/004139.html). We'll go ahead and do that.