[Talk-us] Anyone from New York State around?
I happened to notice https://www.openstreetmap.org/changeset/24646348 while looking at something else. It looks a bit odd - doesn't seem to match the underlying imagery. The previous changeset by this user https://www.openstreetmap.org/changeset/24646289 is a similar bunch of deletions, some former railway, but http://www.openstreetmap.org/way/20661001/history looks like it was a plausible road before it was deleted. I'm happy to revert if that's what people think's best, but didn't want to do so if anyone said why yes, that area is all woodland now. Cheers, Andy ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Anyone from New York State around?
i'm taking a look at them now. On 11/12/14 1:01 PM, SomeoneElse wrote: I happened to notice https://www.openstreetmap.org/changeset/24646348 while looking at something else. It looks a bit odd - doesn't seem to match the underlying imagery. The previous changeset by this user https://www.openstreetmap.org/changeset/24646289 is a similar bunch of deletions, some former railway, but http://www.openstreetmap.org/way/20661001/history looks like it was a plausible road before it was deleted. I'm happy to revert if that's what people think's best, but didn't want to do so if anyone said why yes, that area is all woodland now. -- rwe...@averillpark.net Averill Park Networking - GIS IT Consulting OpenStreetMap - PostgreSQL - Linux Java - Web Applications - Search ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Anyone from New York State around?
On 11/12/14 2:36 PM, Richard Welty wrote: i'm taking a look at them now. i see tags deleted, and then restored by pnorman_mechanical. so there was a problem, but it seems that it's long since fixed (thanks paul) richard -- rwe...@averillpark.net Averill Park Networking - GIS IT Consulting OpenStreetMap - PostgreSQL - Linux Java - Web Applications - Search ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Anyone from New York State around?
On 12/11/2014 19:43, Richard Welty wrote: On 11/12/14 2:36 PM, Richard Welty wrote: i'm taking a look at them now. i see tags deleted, and then restored by pnorman_mechanical. so there was a problem, but it seems that it's long since fixed (thanks paul) richard Some of them were reverted but not https://www.openstreetmap.org/changeset/24646348 I think? Cheers, Andy ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] Anyone from New York State around?
On 11/12/14 2:55 PM, SomeoneElse wrote: On 12/11/2014 19:43, Richard Welty wrote: On 11/12/14 2:36 PM, Richard Welty wrote: i'm taking a look at them now. i see tags deleted, and then restored by pnorman_mechanical. so there was a problem, but it seems that it's long since fixed (thanks paul) richard Some of them were reverted but not https://www.openstreetmap.org/changeset/24646348 I think? the highways were sections of NY 94 and NY 207, both of which appear to be correct and properly tagged now. there was also a poly from the NYS DEC landuse import that Russ Nelson did, part of the Stewart State Forest, not quite sure what is going on there. this might have been a changeset that needed to be reverted back then, but it appears any damage is largely corrected now and reversion is no longer in order. richard -- rwe...@averillpark.net Averill Park Networking - GIS IT Consulting OpenStreetMap - PostgreSQL - Linux Java - Web Applications - Search ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] New I.D Feature
Hi, On Sun, Nov 09, 2014 at 10:33:58AM -0500, Richard Welty wrote: 1) the Census Bureau has an area based version of zip codes (postal codes to the non-US types) called ZCTA. it is not a complete representation, it covers about 30,000 of the 50,000 unique zip codes, but it covers all the ones that can be reasonably envisioned as areas. Nominatim is already using a version of the ZCTA data as an additional source. I know there are some bad errors in there preceisly because it seems that US zip codes don't really cover areas. The search allows a certain degree of fuzziness by accepting all nearby zip codes but that is really not good enough. 2) missing from ZCTA is the mapping from zip codes to postal city as you call it. there is more to it than just a many-to-one mapping, which i'll address in a minute. 3) most of the US mappers are opposed to importing this into OSM for a couple of good reasons, i'm one of those opposed. I can see that there are good reasons not to import ZCTA. It is just an estimate after all. Until now I was under the impression that the postal cities are different than postcodes in that they are well defined areas, i.e. I thought that they are much more similar to administrative boundaries just created by a different branch of the government. But from your mail, it sounds like they are much closer to the zip codes. 4) however, there is also a movement in the US mapping community towards having certain types of data kept out of the core OSM database, including various types of admin boundaries. there are two projects looking at admin boundaries in this manner; i'm working on one of them. 5) so if we could 1) come up with the ZCTA-City mappings and 2) provide them in a convenient external database for use by geocoders, is this something that might reasonably be made use of in Nominatim? i've been considering what a project to crowdsource the zip-city mappings for the US might look like. currently the data exists in OSM to handle about 4% of the mappings, but a maproulette style challenge might get us a lot of the rest. as for that many to one mapping that isn't, basically, for each zip code there is a primary city and potentially a number of secondary cities. the primary city is the city name of the post office that serves the routes; the secondary cities are generally traditional place names within the delivery area; for example, for years i lived in the Lansingburgh neighborhood of Troy NY, and the post office would deliver mail for either city name. any effort to crowd source this data would need to take care of that detail. If I understand you right then the 'secondary cities' are the actual cities/towns/villages already mapped as either place nodes or administrative boundaries. Those are already used by Nominatim. So it seems the primary cities are what I was thinking of when referring to postal cities and they can actually be inferred from the postcode. If that is right, it should be somehow possible to add that concept to Nominatim. I'd have to give it a bit of thought. Sarah ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] New I.D Feature
On Wed, Nov 12, 2014 at 1:10 PM, Sarah Hoffmann lon...@denofr.de wrote: If I understand you right then the 'secondary cities' are the actual cities/towns/villages already mapped as either place nodes or administrative boundaries. Those are already used by Nominatim. So it seems the primary cities are what I was thinking of when referring to postal cities and they can actually be inferred from the postcode. If that is right, it should be somehow possible to add that concept to Nominatim. I'd have to give it a bit of thought. I think that might solve a problem with Census Designated Place, CDP. If the CDP has a different name than the postcode city, Nominatim might have a problem today. Clifford -- @osm_seattle osm_seattle.snowandsnow.us OpenStreetMap: Maps with a human touch ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] New I.D Feature
I share Sarah's skepticism about importing ZCTAs. ZCTAs are generalized polygons created by the US Census Bureau and derived from *point* data furnished by the US Postal Service. Given the variability of ZIP codes in general, and the fact that OSM is two steps removed from the source data makes ZCTAs problematic. Likewise, postal cities are a fiction of the US Postal Service and in many localities, bear little relation to the actual, legally recognized administrative boundaries. Similarly, CDPs serve as a place name for named places that typically have no boundary, e.g. Tysons Corner in suburban Washington, DC. I can see CDPs imported into OSM before postal cities. The CDPs have a regular and well-understood update cycle and a centroid. The same cannot be said of postal cities and I think that trying to map ZIP to city on a one-to-one basis is fraught with difficulty all the way round. Sort of related to this: I gave a presentation at SotM-US in Portland where I tried (with very modest success) to argue that our addr:* tagging scheme is overloaded, making it difficult to search for the 'Stone Brook Drives', to disambiguate directional prefixes/suffixes, and so on. Might be worth talking about the general addressing scheme in the larger context of addresses. -- SEJ -- twitter: @geomantic -- skype: sejohnson8 There are two types of people in the world. Those that can extrapolate from incomplete data. On Wed, Nov 12, 2014 at 4:16 PM, Clifford Snow cliff...@snowandsnow.us wrote: On Wed, Nov 12, 2014 at 1:10 PM, Sarah Hoffmann lon...@denofr.de wrote: If I understand you right then the 'secondary cities' are the actual cities/towns/villages already mapped as either place nodes or administrative boundaries. Those are already used by Nominatim. So it seems the primary cities are what I was thinking of when referring to postal cities and they can actually be inferred from the postcode. If that is right, it should be somehow possible to add that concept to Nominatim. I'd have to give it a bit of thought. I think that might solve a problem with Census Designated Place, CDP. If the CDP has a different name than the postcode city, Nominatim might have a problem today. Clifford -- @osm_seattle osm_seattle.snowandsnow.us OpenStreetMap: Maps with a human touch ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
Re: [Talk-us] New I.D Feature
On 11/12/14 4:33 PM, Steven Johnson wrote: I share Sarah's skepticism about importing ZCTAs. ZCTAs are generalized polygons created by the US Census Bureau and derived from *point* data furnished by the US Postal Service. Given the variability of ZIP codes in general, and the fact that OSM is two steps removed from the source data makes ZCTAs problematic. i did say i had no intention of importing ZCTA data and am also opposed to that idea. richard -- rwe...@averillpark.net Averill Park Networking - GIS IT Consulting OpenStreetMap - PostgreSQL - Linux Java - Web Applications - Search ___ Talk-us mailing list Talk-us@openstreetmap.org https://lists.openstreetmap.org/listinfo/talk-us
