The directory names for the download is really awful. The Tiger people
embedded the state, state name, county, county type and county number
in the darn thing, and used non-standard naming conventions (which I
guess for them are standard now), so trying to automate the download
is a royal pain in the you know where.

If you start from the state download, then use that to get counties,
then use the namelsad to get the individual files, that sort of works,
except for Puerto Rico, which uses non-English characters in the
shapefiles but only English characters in the directory names.

Very funny Tiger people! I'm still laughing.

The new MTFCC code doesn't have a corresponding table to explain what
the codes are. You'll have to go to the documentation, text version,
and create a table from that. Why they didn't just make a table out of
it for downloading is beyond me.

As for place names, another headache. The old Tiger format had a table
(was it the 5 record?) that contained all codes and the names for
them. The new one skips this and leaves us to figure it out. The
documentation makes note that the codes are in the FIPS55 pubs, but
they are both in UTF8 and UTF16 (AK, HI), so trying to combine them is
a real pain. Turns out the FIPS55 pubs are missing a number of the
place codes in the shapefiles, so the best way to derive a placefp to
place name table is to download the "places" shapefiles and use the
name field in those tables instead. This should have been referenced
in the docs instead of leaving the developers to figure it out. Would
have saved me a number of hours playing with the screwed up and
outdated FIPS55 pubs.

-John Coryat

http://maps.huge.info

http://www.usnaviguide.com
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