[Talk-us] How accurate is Tiger data vs Yahoo Aerial?

[Bone Killian]

My experience has been that the Tiger data is pretty accurate for older 
roads.  Newer housing developments are often wildly, massively wrong in 
the Tiger data.  The Yahoo images are pretty darn good. Usually within 
the margin of error for my GPS.

 If I had to pick between the two, I'd say the Yahoo! stuff is more 
correct than TIGER, especially for newer roads.

-- Bone

Russ Nelson wrote:
> am12 at bolis.com writes:
>  > I'm sure the correct fix is some real GPS readings, and align both the
>  > photos and tiger tracks to them.  But I don't have a GPS so I'm just
>  > working off the Yahoo photos.
>  > 
>  > Any advice or suggestions?  Thanks.
>
> Get a GPS?  You have two opinions about reality, and you need a
> third.  A GPS receiver will be ready at hand to give you another vote
> to break the deadlock.
>
> You can also consult Acme Mapper at http://mapper.acme.com.  The Topo
> and DOQ layers are in the public domain.  Some Satellite layers are
> produced by government entities and may be free of copyright.
>
>