The Size of TIGER
Posted by rivermont on 26 October 2018 in English. Last updated on 29 October 2019.The Size of TIGER
There is a LOT of TIGER data, most of it still not even glanced at. And each TIGER road comes with a bunch of metadata tags.
Taginfo has the following statistics on common TIGER tags (as of Oct 6 2018):
- 13,078,000
tiger:cfcc
- 12,871,000
tiger:county
- 11,874,000
tiger:reviewed
(98%no
) - 8,021,000
tiger:name_base
- 6,880,000
tiger:name_type
- 4,700,000
tiger:tlid
- 4,700,000
tiger:source
- 4,020,000
tiger:upload_uuid
- 4,000,000
tiger:zip_left
- 3,600,000
tiger:zip_right
- 3,250,000
tiger:separated
(99% no) - 1,275,000
tiger:name_direction_prefix
- 1,127,140
tiger:name_base_1
- 450,000
tiger:name_direction_suffix
- 370,000
tiger:name_type_1
- ~1,020,000 other tags with >20,000 usage
In the OSM XML format, each tag is structured like so:
<tag k="KEY" v="VALUE"/>
where KEY
and VALUE
are the key/value pair for the tag of course. For example, a simple highway tagged with highway=residential + name=Cole Mill Road + surface=asphalt
is:
```
```