The problem is that there is only one CFCC per TIGER line, and
precedence is given to tranportation classifications. You will
need to examine the ZIP codes on both sides of each line to see
if they are different. If they are, that is a boundary.
Eric Kostello
kostello@carson.math.ucla.edu
Oliver Weatherbee writes:
I am having trouble extracting zipcode boundaries from the tiger census
line files. I extract the files matching the cfcc code F50 which is supposed
to correspond to the zip code boundaries but I get a total of 0 lines read
out. I don't think its a scripting/software problem because it works for
other cfcc codes (F10, F73, etc.).Oliver Weatherbee
oliver@earthview.cms.udel.edu