HELP NEEDED
When I received our TIGER files and TAZ-Up program couple week ago, I started calling
Election Data Services and Caliper Technical Support and was very disappointed with the
state of GIS applications.
We have our TAZs in Caliper's TransCAD GIS format and our zonal configurations are
primarily aggregation of 1990 Census Block Groups. I have no problem in converting these
TAZ boundaries to ArcView Shape files.
In TransCAD, there is a "TAG' function to populate information from one layer to
other layer based on spatial relationship. I understand that ArcView has a "SPATIAL
JOIN' function doing similar job. I have tried the "TAG" function in one of
our least populated county and the results were very messy assignments of TAZs to the
TIGER tgrsscccp files.
Well, there must be some pros out there who can point me to the right direction. I am
resisting doing manually when I already have my TAZs described nicely in a reputable GIS
package.
I would welcome any suggestions and am willing to try new methods before I will assign
summer interns to recreate 1012 zones for the CTPP.
Thanks.
Sweson Yang, AICP
Chief Transportation Planner
City of Indianapolis/Indianapolis MPO
(317) 327-5137 FAX: (317) 327-5103
E-mail: syang(a)IndyGov.org