[Talk-us] identifying TIGER deserts

[Paul Norman]

> From: Michal Migurski [mailto:mike at teczno.com]
> Subject: Re: [Talk-us] identifying TIGER deserts
> 
> That's great!
> 
> I've been thinking about some of the same things, inspired by Dennis
> Zielstra's talk at SOTM-US. I'm looking at road lengths for 1x1
> kilometer squares, measuring OSM user count (post-import) vs.
> possibility for improvement between 2007 and 2012 TIGER/Line data:
> 
> 	http://mike.teczno.com/img/osm-users-imports-2012-09.png
> 	- Blue means 2012 data would be an improvement

How do you identify this? I know that some of the biggest improvements I've
made to TIGER data in remote areas was to delete half of the data. If the
TIGER2012 data hasn't changed a naive comparison will say that the 2012 data
has twice the road length and is better, yet the OSM data is really better
by virtue of paper roads having been deleted.