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NYC Addresses returns incorrect city, post codes, latlng

See original GitHub issue

Address queries within New York City return incorrect locations. For example, the address 860 Broadway returns multiple results with different city values, post codes, and latlng. This is inconsistent with the absolute correct address

  "query": "860 Broadway, Manhattan Community Board 3, New York, United States of America",
  "suggestion": {
    "name": "860 Broadway",
    "administrative": "New York",
    "county": "New York County",
    "city": "Manhattan Community Board 4",
    "country": "United States of America",
    "countryCode": "us",
    "type": "address",
    "latlng": {
      "lat": 40.7697,
      "lng": -73.982
    },
    "postcode": "10022",
    "highlight": {
      "name": "<em>860 Broadway</em>",
      "city": "<em>Manhattan Community Board</em> 4",
      "administrative": "<em>New York City (New York</em>)",
      "country": "<em>United States of America</em>",
      "county": "<em>Manhattan (New York</em> County)"
    },
    "value": "860 Broadway, Manhattan Community Board 4, New York, United States of America"
  }
}```

```{
  "query": "860 Broadway, Manhattan Community Board 1, New York, United States of America",
  "suggestion": {
    "name": "860 Broadway",
    "administrative": "New York",
    "county": "New York County",
    "city": "Manhattan Community Board 1",
    "country": "United States of America",
    "countryCode": "us",
    "type": "address",
    "latlng": {
      "lat": 40.7059,
      "lng": -74.0134
    },
    "postcode": "10003",
    "highlight": {
      "name": "<em>860 Broadway</em>",
      "city": "<em>Manhattan Community Board 1</em>",
      "administrative": "<em>New York City (New York</em>)",
      "country": "<em>United States of America</em>",
      "county": "<em>Manhattan (New York</em> County)"
    },
    "value": "860 Broadway, Manhattan Community Board 1, New York, United States of America"
  }
}```

Issue Analytics

State:
Created 5 years ago
Reactions:1
Comments:5 (3 by maintainers)

Top GitHub Comments

1reaction

JonathanMontanecommented, Sep 11, 2018

The data is actually pulled from OSM, and then processed using Nominatim, and the issue comes from there:

Nominatim defines two ways of being a city: either having the place:city tag being set explicitly, or having a rank of 16 in the administrative rank. You don’t really have to know what this all means. Only that there are two ways to define cities in Nominatim.

Because of that definition, features in Manhattan actually belong to two cities: New York City (place:city tag), and Manhattan Community Board X (rank 16). You can see this on broadway as processed by Nominatim: https://nominatim.openstreetmap.org/details.php?place_id=187073832

We can’t ignore rank 16 cities because this is actually used a lot, and is actually the official defining criterion for a city (link).

We’ll try to find a way to circumvent this edge case, but I don’t have any ETA or roadmap to share on that front.

1reaction

raphicommented, Sep 11, 2018

Thanks for reopening the issue on a separate ticket 😉 Will take a look at it

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