[Talk-us] Importing addresses from TIGER

[Mike N]

On 12/12/2013 11:39 AM, Saikrishna Arcot wrote:
> Hi all,
>
> I believe TIGER has some data on addresses; more specifically, it has
> address ranges for each block (roughly). Currently, the US has limited
> address info in OSM. Some cities have many businesses and POIs with
> address data, so the data in the region might be comparable with other
> mapping services. Is it possible to have a bot/script that matches up
> TIGER roads with OSM roads and then add in address ranges? That way,
> there is at least /some/ info about addresses in OSM.

The address ranges in TIGER are purposely munged for privacy reasons. 
They are not acceptable for import into OSM for quality reasons.  They 
only are useful to get to within the nearest block.   For example, if a 
block consists of addresses 600-622, the TIGER address range might 
specify 600-700 for that same block.

    However, I believe Nominatim has an option to load and use TIGER 
address ranges as a fallback - and that Nominatim running on the OSM 
site uses them.