Nominatim + TIGER

General talk
1

Hi there,

I spent the last several days with importing North America + Wiki + TIGER 2017 in the hope that I’ll be able to geocode addresses into coordinates correctly.

Here is an example:
1440 OLD COUNTRY RD , Riverhead, NY 11901

Where 1440 should be, all buildings are marked 1480, however, TIGER seems to know the good position.
How can I make Nominatim to use housenumbers from TIGER instead?

Thank you very much in advance :slight_smile:
Bests,
András

2

The TIGER position is slightly obfuscated within a block for privacy purposes - it may line up closely with a particular address but there is no guarantee. But locating to the nearest block is better than no guess at all.

From my rough understanding; I haven’t actually done the following: I think Nominatim has an option to load TIGER address blocks as a fallback source when the exact address isn’t defined in OSM.

3

Hi,
thank you for your reply.
I have TIGER 2017 and I have
@define(‘CONST_Use_US_Tiger_Data’, true);
in my local.php

I checked TigerWEB again, seems it has the exact same wrong coordinates as OSM :confused: I suppose that answers it.

Is there a way to quickly and easily fix such errors in OSM?

Thanks,
András

4

You can edit the OSM data if you have an account.
Please do not use copyrighted sources to update OSM data

5

Thank you!
Is there a way to change my local install only?