[CTPP] Re: statewide tazs

Please add me to your mailing list for future CTPP information & correspondence. Thanks! I am Georgia DOT's primary travel demand modeler. Can I ask who you are and how you are involved with upcoming CTPP data structures and tools? I've got a few enhancements I'd like to convey if you will be having input into the 2000 CTPP. I got a copy of your recent message about polling states regarding the need for statewide TAZs. I would comment that having some sort of TAZ structure for states could prove useful. In Georgia, census tracts or counties could serve as TAZs for statewide level models & analysis. I would note that some states have very large counties, so counties may not sufficiently subdivide the state for some types of analysis. If there were more levels of analysis available in the CTPP (i.e., census tracts or block groups) and the polygons could be exported in a GIS format, users could create their own TAZs. For metropolitan areas, I would like to be able to query and export information, preferable as ArcView shape files, at the county, census tract, and census block group levels in addition to those available in the 1990 CTPP.